Hi, I am Alexander White.
user
Hello, how can I help you?
assistant
I want to visit Houston TX - IAH on the occasion of my Granny birthday party. Can you book a flight ticket for me?
user
Sure. Please provide journey information.
assistant
Sure, my travelling dates are 05/19 and 05/21. And my origin airport code is NV - LAS.
user
Please wait a moment, I will check the availability and revert you.
assistant
Sure.
user
Sorry, we did not find any flights matching your criteria.
assistant
Ok, no issues.
user
Thanks for choosing us.
assistant
Thanks for your service.
user