You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Christopher Gonzalez. I want to travel from IAH to IAD. Can you book a flight ticket for me?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates?

USER: I want to fly on 05/02 and 05/04.

ASSISTANT: Flight-1020 of Hawaiian airlines is available for you, shall I proceed?

USER: Proceed with booking.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Welcome.