Hi.
user
Hello, how may I help you?
assistant
Owing to emergency, I need to change my recent reservation. Please help me with that.
user
Sure, can I know your name?
assistant
I am John Smith.
user
Please hold on a moment.
assistant
Ok.
user
Sorry, there is no reservation found on given name.
assistant
No problem, thanks for your information.
user
Thank you for reaching us.
assistant