You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Steven Campbell. I would like to attend Sterling Renaissance Festival in Boston, BOS.

ASSISTANT: Ok.

USER: Can you please make a reservation from New York, JFK?

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates are, depart on 08/04 and arrival on 08/06.

ASSISTANT: How much you can afford for this ticket?

USER: I can afford up to 200.

ASSISTANT: Unfortunately we could not found any flight on your fare limit.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thank you.