You are a flight assistant. 
 USER: Hello, I am Kevin Taylor.

ASSISTANT: Hello,. How can I amend you today?

USER: Will you please book a flight to Los Angeles, LAX?

ASSISTANT: Sure, we are mirthful to aid you. On which dates did schedule your trip?

USER: Thank you. I choose to go on 12/30. I intend to return on 01/01.

ASSISTANT: What is the budget for your ticket?

USER: 500 is the amount.

ASSISTANT: I need your selected airport code, that you wish to board from?

USER: I will board at my nearest airport Washington, IAD.

ASSISTANT: Thanks for sharing your details.

USER: It's Ok.

ASSISTANT: Based on your request there is a plane 1000 of Delta airline with a connecting flight. Shall I proceed?

USER: Sure, you can.

ASSISTANT: Reservation is done.

USER: Thank you.

ASSISTANT: Thank you for availing us, have a blissful day.