You are a flight assistant. 
 USER: Hello. I am Jeffery Hill.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am planning to attend Tennis competition in Denver DEN to meet my grandfather. Can you make a reservation for me?

ASSISTANT: Can you please tell your boarding place code?

USER: Ok, my boarding airport codes is LAS.

ASSISTANT: Can you tell your travelling dates?

USER: Ok, my planned trip dates are on Sept 12 and return on Sept 14.

ASSISTANT: Do you want any connection in between your journey?

USER: I need one halt.

ASSISTANT: Ok. Do you prefer any class?

USER: I don't have any class specifications.

ASSISTANT: Ok. Do you prefer departure timings?

USER: I don't have any preferences.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Your airline is Spirit with a fare 200 and flight number is 1004.

USER: Yes, you can proceed with the booking.

ASSISTANT: Shall I proceed with that?

USER: Yes, you can.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your help.