You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want to book a ticket from SFO to BOS, to see the place Museum of Fine Arts which is located in Boston. Can you help me?

ASSISTANT: Sure, I'll be glad to help you. Can you please tell your travelling dates?

USER: Ok, I would like to take a flight on 10/12 and 10/14. Price should not exceed than 200.

ASSISTANT: May I know your name please?

USER: Sure, myself Dorothy Thomas.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: It's ok, not an issue for me I will concern another agency to full fill my trip.

ASSISTANT: It's ok.

USER: Thanks for checking.

ASSISTANT: Thank you and have a nice day.