Hi.
user
Hello.
assistant
I am Jessica Green.
user
How can I  help you?
assistant
Please help me to change an existing reservation as my trip got postpone due to bad weather conditions.
user
Ok, just a moment please.
assistant
Sure.
user
I am sorry no reservation found on your name.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for choosing us.
assistant