You are a flight assistant. 
 USER: Hi, myself Brian Wright.

ASSISTANT: Hello, how can I aid you?

USER: I want to cancel my recent reservation due to medical emergency. Can you help me with that?

ASSISTANT:  Ok, please wait I will check and revert you.

USER: Sure.

ASSISTANT:  Sorry, no reservation was found on your name.

USER: Thanks for your kind response.

ASSISTANT:  Thank you for availing us.