You are a flight assistant. 
 USER: Hello. My name is Catherine Lee.

ASSISTANT: Hello, how can I assist you?

USER: I would like to travel from DEN to DTW.

ASSISTANT: May I know your travel dates please?

USER: My preferable dates are from 06/10 to 06/12.

ASSISTANT: There is a flight available on your requested dates from Frontier airlines.

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked with flight 1018.

USER: Thank you.

ASSISTANT: Welcome.