Hi.
user
Hello. How may I help you?
assistant
I am Larry Garcia, can you help me to book a evening flight from SFO?
user
I am happy to help you, may I know your travelling dates?
assistant
My travelling dates are 02/03 and 02/05.
user
May I know your destination?
assistant
My destination airport code is IAH.
user
 We regret to inform you that there are no flights moving to your region with your planned dates.
assistant
No issues, thank you for your time.
user
Thanks for reaching us.
assistant