You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Myself Benjamin Thompson. I am looking for a flight from LAX to LAS, can you help me in booking the flight ticket?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My depart day is May 19 and return day is May 21.

ASSISTANT: Here is a flight with 1 stop and price is 200 in Delta airlines, can I proceed with it?

USER: I am looking flight in an economy class.

ASSISTANT: Yes, the above intent which I provided is economy class.

USER: That's fine, please go ahead in booking the flight.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your expeditious service.

ASSISTANT: Thank you.