You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to book a ticket from DEN to LGA?

ASSISTANT: Sure, please share your trip dates.

USER: I want to start on Feb 25 and return on Feb 27.

ASSISTANT: Do you need any connection limit?

USER: I would prefer a connecting flight.

ASSISTANT: Can I know your class preference?

USER: I do not have any class preference.

ASSISTANT: Do you have any specific airline preference?

USER: No.

ASSISTANT: Do you need any other specifications?

USER: Ok.

ASSISTANT: May I know your name?

USER: Kenneth Young here.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: There is a connecting flight in economy class with Delta Airlines and ticket fare of 200. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket is reserved with flight 1010.

USER: Thank you.

ASSISTANT: Thank you for choosing us.