You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER:  I am Kenneth Lopez want to cancel my reservation owing an emergency. Can you help me with it?

ASSISTANT: Sure. Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. We didnt found any reservation by this name.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.