Hello. I am Thomas Walker.
user
Hello, how may I assist you?
assistant
I need to change my existing reservation, can you help me for change my reservation?
user
Sure, please wait for sometime I will get back to you.
assistant
Sure.
user
Unfortunately, we did not found any reservation on your name.
assistant
Ok, no issues.
user
Thank you for reaching us, have a good day.
assistant
Thanks for your information.
user