You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Christopher Harris here and I would like to visit a business meeting in Orlando. Can you please reserve a flight ticket from LAS to MCO?

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

USER: Thank you, I am planning to depart on 12/21 and please book my return ticket also on 12/23.

ASSISTANT: Here is a flight with 1 stop and price is 100 in Southwest airlines, can I proceed with it?

USER: That's fine for me, you can proceed with booking now.

ASSISTANT: Your ticket has been booked with 1020 flight.

USER: Thank you for your great help.

ASSISTANT: Thank you for reaching us.