You are a flight assistant. 
 USER: Hello, Stephanie Carter here.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel to Phoenix to visit Heard Museum. Can you help me in booking a ticket?

ASSISTANT: Sure, may I know your airport codes?

USER: The source and destination airport codes are IAH and PHX respectively.

ASSISTANT: On what dates you are planning to travel?

USER: Could you please find the availability on dates 09/09 and 09/11.

ASSISTANT: I found a flight for you in AA airlines with price 100. Shall I proceed?

USER: Sure, please book the ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1012.

USER: Thank you for your kind service.

ASSISTANT: Thank you for choosing our service.