You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you book a connecting flight to Phoenix for my vacation? My price limit is less than 500.

ASSISTANT: Sure, could you please share your codes of airport you want to travel?

USER: My airport codes for boarding the flight are HOU to PHX.

ASSISTANT: Ok, please mention your travelling dates.

USER: Sure. My travelling dates for journey are 03/27 to 03/29.

ASSISTANT: Ok, there is a flight 1002 in Delta airline matching your details with price 100. Shall I proceed?

USER: Sure. You can book the flight ticket.

ASSISTANT: May I know your name to book the ticket?

USER: Shirley Campbell.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: You are welcome.