You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Could you please help me to book a flight ticket from Charlotte?

ASSISTANT: Sure, please provide your airport codes.

USER: Thank you. I am willing to travel my journey from CTL to reach DTW.

ASSISTANT: May I know your journey dates?

USER: The preferable travel dates are Feb 23 and Feb 25.

ASSISTANT: May I know your exact source airport code?

USER: Sorry, I had a confusion about the airport code of Charlotte. I think it is CLT.

ASSISTANT: May I know your connection limit?

USER: I am interested to travel in a flight which is having at least a single connection in between my journey.

ASSISTANT: Do you have any preferences?

USER: No, I didn't have any other preferences.

ASSISTANT: May I know your name?

USER: My name is Ronald Miller.

ASSISTANT: UA airlines with flight 1025 is providing a connecting flight and ticket costs you 100 in economy class.

USER: I am ok with the economy class ticket, please do proceed with the ticket booking.

ASSISTANT: Your ticket is confirmed Ronald Miller. Flight departs at 20:00 hours and arrives at 18:00 hours.

USER: Thanks a lot for your help in providing the best service.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.