You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I amend you?

USER:  I am Mark Thompson want to cancel my reservation owing an emergency.

ASSISTANT: Ok.

USER:  Can you help me with it?

ASSISTANT: Sure. Please, wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Thank you for your help.

ASSISTANT: Thank you for picking us.