You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I am Michelle Robinson. I need to attend workshop in Dallas, DFW, can you please make a reservation from LAS with connecting flight?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My journey start on Dec 19th  and return back on Dec 21st morning.

ASSISTANT: We have found a Delta airline of 1018 flight number with one connection of cost 100.

USER: Ok, proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thanks for your service.

ASSISTANT: You are welcome.