You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Matthew Young. I need to schedule my trip to visit Chicago. Can you please help me in reserving the ticket from DCA to ORD?

ASSISTANT: Sure, may I know your travel dates?

USER: I am planning my trip on Nov 5, and again I will return back on Nov 07.

ASSISTANT: At what time do you like to travel?

USER: My depart time is afternoon, and again return time is evening.

ASSISTANT: Do you have any specifications?

USER: I am comfort with single connection.

ASSISTANT: Sorry, there is no flight on your details.

USER: Not a big problem, anyhow thank you very much for your service.

ASSISTANT: Thank you.