You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to attend a musical event at DCA, can you help me to book a flight ticket from IAD?

ASSISTANT: Sure, kindly share your travel dates.

USER: My travelling dates are 07 and 09 of Sep.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I would like to depart in the morning.

ASSISTANT: Please share your name.

USER: I am Jason Jackson.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thanks for reaching us.