You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I aid you?

USER: The fine juried art show in downtown’s Hermann Square and Tranquility Park spans several blocks filled with paintings, sculptures, jewellery, and music. I want to visit there. Can you please help me in reserving my ticket?

ASSISTANT: Sure, Can you share your travelling dates?

USER: I would appreciate, If you can find a flight with price limit:200 and having a direct flight.

ASSISTANT: May I know your name?

USER: I want to fly on 04/09 and return on 04/11. I am Mary Jackson.

ASSISTANT: May I know the source and destination points?

USER: Destination point is SFO and origin is from JFK.

ASSISTANT: Ok, Wait a while.

USER: Sure.

ASSISTANT: Thanks for waiting. There are no flights available with your data.

USER: Ok, Thank you.

ASSISTANT: Ok, Thank you.