You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Myself Jonathan Robinson. I need to travel DCA and MSP, can you please help me reserving flight ticket?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are Nov,15 and Nov,17.

ASSISTANT: Do you have any requirements?

USER: I need a business class flight with depart time is in the morning.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: That's ok, I will make any other alternate source to reach my destination.

ASSISTANT: Thank you for approaching us.

USER: Thank you for searching the flights.