You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to schedule my trip to travel Minneapolis. Can you please help me in reserving the ticket from IAD to MSP?

ASSISTANT: Sure, may I know your name please?

USER: Myself Patricia Phillips.

ASSISTANT: May I know on which dates you are willing to travel?

USER: I would like to travel on Dec 28 and again I will return back on Dec 30.

ASSISTANT: May I know your class preference please?

USER: I would like to travel in business class.

ASSISTANT: May I know your preferable time for journey?

USER: No, I don't have any particular timings regarding my journey.

ASSISTANT: May I know connection limit please?

USER: I am planning to travel in single connection flight.

ASSISTANT: Sorry Phillips, there is no flight found as per your business class requirement.

USER: Not a big deal, anyhow thank you very much for your kind information.

ASSISTANT: Thank you for reaching us.