You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Matthew Nelson.

ASSISTANT: How may I help you?

USER: I need to book a flight ticket from MSP to DEN. Can you please help me to book a connected flight ticket?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, my journey dates are Dec 05 and Dec 07.

ASSISTANT: Do you have any airline preference?

USER: I prefer a departure time at Afternoon.

ASSISTANT: As per your data, there is a flight with Frontier Airlines and the ticket fare is 200. Shall I proceed for this?

USER: Yes, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Most welcome.