You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am George Lee. I am planning to travel from IAD to IAH.

ASSISTANT: May I know your dates?

USER: My travelling dates are 11/24 to 11/26.

ASSISTANT: Here is a flight with fare 100 and 1019 as flight number.

USER: proceed for booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.