You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I want to attend for a seminar in LAS. Can you please aid me for booking from DEN?

ASSISTANT: Sure, when would you like to travel?

USER: I would like to travel on Aug 23 and 25.

ASSISTANT: Do you have any specifications?

USER: I prefer to travel in business class.

ASSISTANT: May I know your name please?

USER: My name is Lisa Anderson.

ASSISTANT: We found a flight in an airline Southwest with 1011 number having a single connection price of 100. Shall I reserve it?

USER: Ok, please proceed for booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.