Hi.
user
Hello, how may I serve you at this moment?
assistant
I am Susan Martinez. Can you help me with changing my reservation?
user
Sure, we are here to help you.
assistant
Thanks.
user
Please wait for a while.
assistant
Sure, I need a connecting flight.
user
Sorry no reservation found with your name in our database.
assistant
It's ok, thanks for checking.
user
Thank you  for choosing us.
assistant