Hello.
user
Hello. How may I aid you?
assistant
Myself Donald Miller. Can you please help me in booking a flight ticket from IAH to OAK locations?
user
On which dates you are willing to travel?
assistant
My travelling dates are from 04/14 and 04/16.
user
Sorry, on this dates no flights are available.
assistant
It's ok, I'll complete my trip with some other source. Anyways, thank you for the information.
user
It's my pleasure.
assistant