You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you today?

USER: I was invented as a guest to a college festival from Dallas DFW, can you help me in booking my flight ticket to Houston TX-IAH?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: How much you can afford for this journey?

USER: I can spend up to 500.

ASSISTANT: Let me know your travelling dates to check the flights.

USER: I will travel on 12/07 to 12/09.

ASSISTANT: To proceed booking I need your name.

USER: I am Katherine Jones.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: There is a flight with airline: Southwest, flight number:1002, price 100, 1 connection. Shall I proceed?

USER: Please go ahead.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you, have a happy journey.