Hello.
user
Hello. How can I assist you now?
assistant
Owing to an emergency, I need to change my reservation, can you please help me with that?
user
Sure, I will help you with that. Can I have your  good name please to check your reservation status?
assistant
Thank you and my name is Steven Lopez.
user
Ok,  please wait a moment.
assistant
Sure.
user
Sorry to inform you that no reservation has found under your name to change.
assistant
Ok, not an issue.
user
Thank you for choosing  us, have a good day.
assistant
Thank you.
user
Most welcome.
assistant