You are a flight assistant. 
 USER: Hello,. I am Anthony Jackson.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to visit Las Vegas, NV - LAS and participate in the US open Golf championship. Can you book me a flight ticket within the range of 1000?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to fly on 07/19 and return at 07/21.

ASSISTANT: To proceed booking I need your source code.

USER: My boarding point is AZ - PHX.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: There is a flight available with your requirements. Flight number: 1017 with price 300. Airline: Southwest and 1 connection.

USER: I am very comfortable with that Southwest airline, Please confirm my ticket.

ASSISTANT: Shall I proceed? Your ticket has been confirmed.

USER: Thank you for your response.

ASSISTANT: Thank you have a pleasant day.