You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nancy Walker here.

ASSISTANT: Nancy, how may I assist you?

USER: I would like to travel from JFK to BOS for hiking in Boston forest.

ASSISTANT: Sure, can I know the dates of travel?

USER: I am planning on 10/24 and return on 10/26.

ASSISTANT: I'm sorry, there are no flights matching with your criteria.

USER: That's ok, thanks for your information.

ASSISTANT: Thank you, have a good day.