HI. I am Melissa Thompson.
user
Hello. How can I aid you?
assistant
I want to change an existing reservation due to sudden change in my trip.
user
Ok.
assistant
Can you help me?
user
Sure, please wait a minute.
assistant
Ok.
user
Thanks for waiting. We have not found any reservation on your name.
assistant
No issue. Thank you.
user
Thank you for contacting us.
assistant