Hello.
user
Hello. How can I help you?
assistant
I want to change my existing reservation due to bad health condition. Can you help me  with that?
user
Ok. May I know your good name?
assistant
Sandra Wilson.
user
Please, wait.
assistant
Sure, I will wait.
user
Thanks for waiting, no reservation found on your name.
assistant
No issues. Thank you for helping me.
user
Thank you for choosing us.
assistant