Hello.
user
Hello, how can I help you today?
assistant
Can you please book a flight ticket from IAH to ORD?
user
Sure, we are here to help you. Can you share me your travelling dates?
assistant
Thank you.  I have planned my travel dates as Sept 02 and Sept 04.
user
Do you have any other specifications?
assistant
I would prefer business class to travel.
user
May I know your name?
assistant
Sure, myself Gregory Mitchell.
user
Ok, wait for some time.
assistant
Sure, take your time.
user
Thanks for waiting there are no flights found on your details.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Thanks for approaching us.
assistant