Hello.
user
Hello. How can I assist you?
assistant
Owing to an emergency, I want to change my existing reservation. Can you help me?
user
Sure, I will help you.
assistant
Thank you.
user
May I know your good name to check the reservation status?
assistant
Yes, I am Samantha Smith.
user
Please, wait for a while.
assistant
Ok, I will.
user
Thank you for waiting, there is no reservation found on your  name to change.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for approaching us.
assistant