Hello.
user
Hello. How can I aid you?
assistant
Can you please book a flight ticket from IAH to PHL?
user
Sure, may I know the planned travel dates?
assistant
Thank you. I have planned my travel dates as Aug 25 and Aug 27.
user
Please provide me the name.
assistant
Sure, myself Katherine White.
user
Do you have any specifications?
assistant
I would prefer normal cost airlines only so please make sure that.
user
Sorry, there are no flights are available for your desired intent.
assistant
Oh! It is sad  to hear. Anyway, thank you for your time.
user
Thank you for reaching us.
assistant
Most welcome.
user