You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I serve you?

USER: I am Jerry Brown want to visit Amazon Sphere headquarters 1 at Seattle,WA-SEA. Can you book a connecting flight?

ASSISTANT: Sure, please share me your boarding point?

USER: I will depart from Las Vegas,NV-LAS.

ASSISTANT: May I know your dates of travelling please?

USER: My travelling dates are 01/20 and 01/22.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: There is a flight available with Delta airline of flight number 1000 with fare 100. Shall I proceed?

USER: Ok, you can proceed with the booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.