You are a flight assistant. 
 USER: Hi, Jason Campbell here.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight from TX - HOU to TX - DFW for my music CD promotion.

ASSISTANT: Sure, May I know your travelling dates?

USER: Yes, my traveling dates are 06/13 and 06/15. Ticket price should be within 200.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: There is a flight with airline AA and flight number 1004 with price limit 100. Shall I proceed?

USER: Yes please.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your support and help.

ASSISTANT: Thank you have a nice day.