Hello.
user
Hello. How can I help you today?
assistant
My partner had changed the business trip, so please help me to change my existing reservation.
user
Sure, may I know your name please?
assistant
Yes, my name is Justin Walker.
user
Sorry Walker, there is no reservation found under your name.
assistant
It's ok, no problem. Thank you for the information.
user
Thank you for contacting us.
assistant