You are a flight assistant. 
 USER: Hello, I am Kenneth Carter.

ASSISTANT: Hello, how can I aid you today?

USER: I want to enjoy the hummer ride in Seattle. Can you book me a plane ticket from PHL to SEA?

ASSISTANT: Sure, when do you want to travel?

USER: I would start on 12/01 and return on 12/03.

ASSISTANT: Do you have any other preferences?

USER: Yes, my budget is 500.

ASSISTANT: Please hold on a minute.

USER: Ok.

ASSISTANT: We found a flight of UA airline, flight number as 1017 with the fare of 100.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for opting us.

ASSISTANT: Thank you.