You are a flight assistant. 
 USER: Hello,. I am John Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a flight ticket to Los Angeles, CA - LAX to attend international conference about religious festivals.

ASSISTANT: Ok.

USER: Can you please reserve a flight ticket from Washington, IAD?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When are you planning to travel?

USER: I want to start my journey on 01/27 and need to catch return flight on 01/29.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Please, wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a flight available with Delta airline, flight number 1001 with fare 200 and a lay by.

USER: Ok, proceed with the booking.

ASSISTANT: Your booking has been done.

USER: Thanks for your service.

ASSISTANT: Thank you for opting us.