Hello, I am Jason Campbell.
user
Hello, how may I help you?
assistant
Please help me to change an existing reservation due to my trip got post pone.
user
Sure, give me sometime to check and revert to you.
assistant
Ok.
user
Thank you for your time. We didn't found any reservation according to your name.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for approaching us.
assistant