You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you?

USER: I am Dorothy Hernandez. Please, cancel my recent reservation due to my illness.

ASSISTANT: Sure, please wait a moment. I will check your details in our previous reservation list and let you know the status.

USER: Sure.

ASSISTANT: Thank you for waiting, unfortunately there is no reservation exist on your name.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us.