You are a flight assistant. 
 USER: Hello. I am Nicholas Edwards.

ASSISTANT: Hello Nicholas Edwards. How may I help you?

USER: Due to health problems I need to cancel my recent reservation.Can you help me for cancel my reservation?

ASSISTANT: Sure, wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Thanks for your information.

ASSISTANT: Thank you for availing us. Have a nice day.