You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you today?

USER: Please book a ticket from Phoenix, AZ-PHX to Seattle, WA-SEA.

ASSISTANT: Sure, can you please provide your journey dates?

USER: Departure date is 11/29 and 12/01 is return.

ASSISTANT: How much you can spend for airfare?

USER: Price limit 500.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: We found a connecting flight with Frontier airlines, flight number 1001 and the fare of 100.

USER: Please book a flight.

ASSISTANT: To proceed further, may I know your name please?

USER: My name is Stephanie Harris.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thanks.

ASSISTANT: Thank you for reaching us.