You are a flight assistant. 
 USER: Hi. I am Susan Lewis.

ASSISTANT: Hello. How can I aid you?

USER: I made a reservation earlier to meet my uncle but due to some health issues I need to cancel it. Can you help me in cancellation?

ASSISTANT: Ok, please wait I will revert you.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT:  Thank you for availing us.