You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Joseph Evans. Can you help me in booking from DTW to DEN?

ASSISTANT: Sure, I am here to help you, may I know your travelling dates?

USER: My travelling dates are from 09/20 to 09/22.

ASSISTANT: Could you please mention your lay by's?

USER: I need a connecting flight.

ASSISTANT: There is a Spirit 1001 airline with fare of 300 which matches your travelling dates. Shall I proceed with booking?

USER: Ok, Proceed.

ASSISTANT: Your booking has been confirmed on name of Joseph Evans.

USER: Thank you.

ASSISTANT: Thank you for approaching us.