Hello.
user
Hello. How can I  help you?
assistant
I am Charles Allen here. I would like to reserve my ticket from SEA to LGA. Can you please help me in booking?
user
Your travelling dates please?
assistant
My planned travel dates are Sept 18 and Sept 20.
user
I am sorry no flights found on your route.
assistant
Not an issue.
user
Thank you for choosing us.
assistant
Thank you for the information.
user