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

ASSISTANT: Hello, How may I be of your assistance today?

USER: I want to give a presentation at Houston, HOU. Can please help me in booking from Washington, IAD?

ASSISTANT: Sure, I am here to help you. May I have your travel dates?

USER: My travelling dates are from 01/04 to 01/06.

ASSISTANT: Please specify the connection limit.

USER: I need a connecting flight.

ASSISTANT: Thanks for sharing your details. There is a flight 1021 with Delta airline which matches your request. Shall I proceed to book?

USER: Ok, Proceed.

ASSISTANT: Your reservation is done.

USER: Thanks for your assistance.

ASSISTANT: Thank you.