Hi.
user
Hello. How may I help you out?
assistant
I am Frank Wright want to visit Houston, can you book a ticket from SFO to IAH?
user
Sure, I will help you in booking the ticket. May I know your travelling dates please?
assistant
Sure, my travelling dates will be 04/22 and 04/24.
user
Sorry, there are no flights found in our database.
assistant
That's ok, thank you.
user
Thank you for reaching us.
assistant