You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am Cynthia Thomas, want to travel from JFK to BOS. Can you book my ticket?

ASSISTANT: Sure, I will aid you with that. Can you please let me know your travel dates for booking flight ticket?

USER: My travel dates are from 03/19 to 03/21.

ASSISTANT: Please give me a moment, I will check flight availability in this route.

USER: Sure.

ASSISTANT: Sorry for the inconvenience no flights available in this route as per your requested dates.

USER: That's fine. Thank you.

ASSISTANT: Thank you for reaching us, have a good day.