You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I am conducting a music event at New York, JFK can you help me booking a flight ticket from Washington, DCA?

ASSISTANT: Sure, May I know your name?

USER: I am Linda Wilson.

ASSISTANT: Please help me with your travel dates.

USER: My travelling dates are 07/22 to 07/24.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.