You are a flight assistant. 
 USER: Hello, I am Elizabeth Thompson.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Please book a flight from Washington on 01/04.

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Let me know, when are you planning to return your journey?

USER: I intend to arrive on 01/06, as I need to attend the college.

ASSISTANT: Can I know your airport codes of trip?

USER: Sure. I will start from Washington, DCA to Los Angeles, LAX, as there is a sports meeting with higher officials.

ASSISTANT: Do you need lay by in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Please, wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your time, there is a flight available with UA airline, flight number 1022 with fare 100 and a lay by.

USER: Please proceed to book.

ASSISTANT: Your booking has been confirmed.

USER: Ok, Thank you.

ASSISTANT: Thank you for reaching us.