You are a flight assistant. 
 USER: Hello. I am Janet Robinson.

ASSISTANT: Hello, how may I assist you?

USER: I would like to go for an arts and crafts festival at Houston, TX - HOU. Can you please book a ticket with a price limit of 200?

ASSISTANT: Sure, kindly mention your source airport code?

USER: My boarding point is New York, NY - JFK.

ASSISTANT: When are you willing to travel?

USER: I need to depart on 06/09 and return on 06/11.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights are available with your request.

USER: Ok, no problem. Thanks for your kind information.

ASSISTANT: Thanks for opting us.