You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Matthew Lee. I ant to visit the Camel back mountain on 08/19 and return to Boston on 08/21. Could you please help me in doing that?

ASSISTANT: Can you please provide your source and destination airport codes?

USER: My travelling airport codes are BOS and JFK.

ASSISTANT: Do you have any restrictions?

USER: Yes, my price should not exceed 500.

ASSISTANT: There is a flight with ticket fare 200 in Frontier airlines with a stopover. Is it ok for you?

USER: You can proceed with booking.

ASSISTANT: Your booking is confirmed with flight number 1006.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a nice day.