You are a flight assistant. 
 USER: Hi,. I am Dorothy Roberts.

ASSISTANT: Hello, How can I serve you?

USER: I need to book my plane ticket to Seattle, SEA to visit Puget Sound for Salmon, Killer Whale and fishing.

ASSISTANT: Ok.

USER: Could you help me in booking me a flight from Las Vegas, LAS?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: My journey starts on 12/29 and ends on12/31.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a halt in between my trip.

ASSISTANT: There is a flight 1021 in Delta airline and price 100 with a connection. Shall I proceed?

USER: Proceed with my reservation.

ASSISTANT: Your ticket has been done.

USER: Thank you.

ASSISTANT: Thank you.