You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Amanda Hernandez. I want to cancel my reservation, due to my health issues.

ASSISTANT: Sure, I will help you. Please wait for a while, I will check the reservation list and revert to you.

USER: Sure.

ASSISTANT: Thanks for your patience. There is no reservation existed earlier to proceed further.

USER: Not an issue. Thank you.

ASSISTANT: Thanks for availing us, Have a nice day.