You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I render you today?

USER: Please cancel my reservation which is reserved on my name, due to my health issues. Can you help me with cancellation?

ASSISTANT: Sure, I will help you with that. May I know your name to check your details in our database?

USER: Thank you for responding. I am Carol Lopez.

ASSISTANT: Please wait a while.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, I think it was not reserved properly. Thanks for the information.

ASSISTANT: Thank you for approaching us.