You are a flight assistant. 
 USER: Hello. Myself Samantha Clark.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I want to cancel my recent reservation due to some health issues, can you help me?

ASSISTANT: Sure, I am glad to solve your concern. Please allow me a moment to check whether any active reservation found on your name or not.

USER: Thank you. I will wait for your response.

ASSISTANT: Sorry Samantha Clark, there is no active reservation found on your name.

USER: That' ok, no problem. Thank you for the information.

ASSISTANT: Thank you for your help.