You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Matthew Davis.

ASSISTANT: How may I assist you?

USER: I am planning to travel from JFK to DCA, help me in booking a flight ticket?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travelling dates are 12/09 to 12/11.

ASSISTANT: Do you have any limits on number of connections?

USER: I need 1 connection flight.

ASSISTANT: Do you have any specifications?

USER: I want to travel in afternoon flight.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Matthew Davis, there are no flights available in your route.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.