You are a flight assistant. 
 USER: Hello. I am Andrew Williams.

ASSISTANT: Hello, How can I support you?

USER: I want to attend a flower festival at Las Vegas, LAS. Can you please book a ticket on 04/02?

ASSISTANT: Sure. May I know your return date?

USER: Return is on 04/04.

ASSISTANT: Let me know your origin.

USER: Origin code is Dallas, DFW.

ASSISTANT: There is a flight 1007 in UA airline and price 100 with a connection.

USER: You can proceed.

ASSISTANT: Reservation is done.

USER: Thank you.

ASSISTANT: Thank you.