You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I would like to travel from HOU to PHX as a business trip. Can you help me to book a ticket?

ASSISTANT: Sure, I can help you with that. May I know your planned dates of journey?

USER: My journey dates are 09/21 and 09/23.

ASSISTANT: Do you need a lay over?

USER: I need break in my journey.

ASSISTANT: How much airfare are you looking for?

USER: Price should not cross 500.

ASSISTANT: Ok, there is an Frontier airline with flight number 1007 going on your name and the fare is 300. Shall I proceed?

USER: Go ahead.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us. May I know your name?

USER: Carol Davis here.

ASSISTANT: Thank you.