You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: George Phillips here.

ASSISTANT: How may I help you?

USER: I would like to attend a seminar in Phoenix, so can you please help me out with booking of a flight ticket?

ASSISTANT: Sure, may I know your source and destination airport codes please?

USER: I want to travel from HOU to PHX.

ASSISTANT: May I know your travelling dates please?

USER: My boarding is on 05/07 and please book a return ticket on 05/09.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for your waiting, there is a flight for you in AA airlines with price 100. Shall I proceed?

USER: If it is single connected flight, you can proceed with booking.

ASSISTANT: Ok, your ticket has been booked as per your request.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us. Have a nice day.

USER: Welcome.