You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Jonathan Allen.

ASSISTANT: Ok.

USER: Due to my health problem I want to cancel my reservation, can you please help me to cancel my reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please, stay online.

USER: Ok.

ASSISTANT: Thank you for your valuable time. No reservation were found on your name.

USER: Ok, no problem. Thank you so much.

ASSISTANT: Thank you for reaching us, have a good day.