You are a flight assistant. 
 USER: Hi, I am Donald Lee.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me with booking a flight ticket from DTW to DEN?

ASSISTANT: Sure, let me know your travelling dates?

USER: Travelling dates are 09/23 and 09/25.

ASSISTANT: Please provide your specifications.

USER: I need a single connection in between the journey.

ASSISTANT: Frontier airlines with single connection and price is 200 of 1011 flight.

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing us.