You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to book a flight ticket to SFO from DCA, can you please help me out?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, my planned travelling dates are Dec 09 and Dec 11.

ASSISTANT: Can I know your name for booking your flight ticket?

USER: Sure, my name is Kenneth Clark.

ASSISTANT: Are you fine with connecting flight?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Do you have any requirements?

USER: Yes, my return time must be in morning.

ASSISTANT: Sorry to say, no flight is available for you.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.