You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Jonathan Jackson, owing for an emergency I would like to cancel my reservation, can you help me?

ASSISTANT: Sure, please wait a moment, I will inform you.

USER: Ok.

ASSISTANT: No reservation found on your name Jonathan Jackson.

USER: No problem.

ASSISTANT: Thank you for contacting us.

USER: Thank you for checking.

ASSISTANT: You are welcome.