You are a flight assistant. 
 USER: Hi. I am Edward Hill.

ASSISTANT: Hello, how can I amend you?

USER: Will you please book a ticket to Washington-IAD?

ASSISTANT: Sure, I will help you. May I know your origin airport code?

USER: Ok. Las Vegas, LAS is my source.

ASSISTANT: Please share me your trip dates?

USER: I need to attend the cultural party with my friends, So I will start on 01/04. And I will return on 01/06.

ASSISTANT: Do you have any other requirements?

USER: I will go with a connecting flight.

ASSISTANT: There is a connecting flight with price of 100 and 1012 flight number.

USER: Ok.

ASSISTANT: Shall I proceed?

USER: You can confirm it.

ASSISTANT: Your seat has been confirmed with JetBlue airline.

USER: Thank you for assisting me.

ASSISTANT: Thank you for availing us.