You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please book a flight ticket from LAX to DEN?

ASSISTANT: Sure, we are here to help you. Can you please share your travel dates?

USER: My travelling dates are June 18 and June 20.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER:   No.

ASSISTANT: Please share your name.

USER: My name is Cynthia King.

ASSISTANT: There is a flight with your requirement, airline is Spirit Airlines with price 100 and direct flight. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your booking is done and flight number is 1001 in economy class.

USER: Thank you.

ASSISTANT: Thanks for reaching us.