You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Donald Lee.

ASSISTANT: How may I be of your help?

USER: I would like to watch Baseball match in Coors Field Stadium at Denver, DEN. Can you please make  a reservation with direct flight?

ASSISTANT: Sure, let me know your origin airport code?

USER: My origin point is Charlotte, CLT.

ASSISTANT: When did you planned to travel?

USER: My journey dates on 11/21 and 11/23.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: There is a flight found from Spirit airline of fare 100 and flight number 1026. Shall I book it?

USER: Ok, proceed.

ASSISTANT: Your flight ticket is reserved.

USER: Thanks for the help.

ASSISTANT: Thanks for availing us.