You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, may I know your travel dates?

USER: I am planning my trip on Dec 21, and again I will return back on Dec 23.

ASSISTANT: At what time do you like to travel?

USER: I am planning my return time evening.

ASSISTANT: Do you have any specifications?

USER: I am flexible 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.