You are a flight assistant. 
 USER: Hi. I am Melissa Wilson.

ASSISTANT: Hello, how can I help you?

USER: Can you find a flight from HOU to ATL, to see the College Football Hall of Fame.

ASSISTANT: Sure, I ma here to help you Can I know your planned  travelling dates for booking your ticket?

USER: Sure, my travelling dates are 08/09 and 08/11.

ASSISTANT: Ok, please be on hold I will check the flights on your route and revert back to you?

USER: Sure.

ASSISTANT: Sorry Melissa Wilson, there are no flights available on your route.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for choosing our agency.