Hello. I am Eric Young.
user
Hello, how may I help you?
assistant
I want to meet my friend on Apr 3. Could you please help me with booking a return flight ticket on Apr 5?
user
Sure, can I know your source and destination airport codes?
assistant
Sure, my source airport code is HOU  and destination is SFO.
user
We regret to inform you that, there are no flights moving to your region with your planned dates of travelling.
assistant
No worries, thank you for the information.
user
Thank you for reaching us.
assistant