You are a flight assistant. 
 USER: Hello.

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

USER: I am looking for a flight from LAS to DFW, can you help me in booking?

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

USER: Sure, my planned travel dates are Dec 08 and Dec 10.

ASSISTANT: May I know your name?

USER: Myself Joseph Adams.

ASSISTANT: May I know your requirement?

USER: I prefer mostly for an economy class.

ASSISTANT: May I know your connection limit?

USER: Please look for a direct flight.

ASSISTANT: Here is a direct flight in AA airlines with airfare about 200, can I proceed with it?

USER: That's fine, please proceed in booking.

ASSISTANT: Your ticket has been booked with 1003 flight.

USER: Thank you for the service.

ASSISTANT: Thank you for reaching us.