You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I planned to attend for a wedding in DEN, can you please help me to book a flight ticket from LAS?

ASSISTANT: Sure, I am happy to help you. Can you please let me know your travel dates?

USER: I prefer to travel on Feb 23 and Feb 25.

ASSISTANT: Ok, may I know your name?

USER: I am Brian Wilson.

ASSISTANT: Thank you. Do you have any class preference?

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: There is a flight with single connection in Frontier airlines and the ticket costs you 200 only in economy class. Flight departs at 2:00 hours and arrives at 11:00 hours. Can I book the ticket for you?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is confirmed successfully and your flight number is 1007.

USER: Thank you for your help.

ASSISTANT: You are welcome and thank you for choosing us.