You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking a flight ticket from DEN to CLT?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: I would like to fly on Dec 05 and return on Dec 07.

ASSISTANT: Do you have any other preferences?

USER: I would like to return in the afternoon time.

ASSISTANT: I have found an economy class ticket with a price of 100 and 1 connection.

USER: You can proceed to booking.

ASSISTANT: Can I know your name for booking?

USER: Myself Karen Hall.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for contacting us.