You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Donna Wilson.

ASSISTANT: How may I assist you today?

USER: Due to some health issues, I want to cancel my recent reservation. Can you please help me to cancel my reservation?

ASSISTANT: Sure, I can aid you with that.

USER: Ok.

ASSISTANT: Sorry Mr Wilson, there is no reservation found with with your name.

USER: Not an issue, thank you very much for helping me.

ASSISTANT: Ok sure, if you need any other help from our agency then you can contact us.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.