You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Deborah Green here. Can you assist me in ticket booking from DCA to JFK?

ASSISTANT: Sure, please provide your travelling dates.

USER: My travelling dates are from 09/22 to 09/24. Please make sure with 1 connection.

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

USER: That's fine. Thank you for your help.

ASSISTANT: Thank you and have a nice day.