Follow up on quotes that get no reply

from datetime import date
from clickruntime import on_event, on_trigger, credentials, http, state, notify

FROM = "+447700900000"
NUDGES = ["Hi {name}, just checking you got our quote for {job}. Any questions?",
          "Hi {name}, our quote for {job} is still open – reply YES to book or NO if you've gone elsewhere."]

@on_event
def store(event):
    quotes = state.get("quotes") or {}
    quotes[event.json["phone"]] = {**event.json, "sent_on": str(date.today()), "nudges": 0}
    state.set("quotes", quotes)
    return {"stored": True}

@on_trigger
def chase(event):
    sid = credentials.secret("TWILIO_ACCOUNT_SID")
    api, auth = f"https://api.twilio.com/2010-04-01/Accounts/{sid}/Messages.json", (sid, credentials.secret("TWILIO_AUTH_TOKEN"))
    quotes = state.get("quotes") or {}
    for phone, q in list(quotes.items()):
        replies = http.get(api, auth=auth, params={"From": phone, "To": FROM, "DateSent>": q["sent_on"]}).json()["messages"]
        if replies:
            quotes.pop(phone)
        elif q["nudges"] < len(NUDGES):
            http.post(api, auth=auth, data={"To": phone, "From": FROM, "Body": NUDGES[q["nudges"]].format(**q)})
            q["nudges"] += 1
        else:
            notify.email_me(f"No reply to quote: {q['name']}", f"{q['job']} for {phone} – two nudges, no answer.")
            quotes.pop(phone)
    state.set("quotes", quotes)
    return {"open": len(quotes)}