You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, may I know your name?

USER: Sure, I am Kimberly Mitchell.

ASSISTANT: Wait a minute.

USER: Ok, I will wait.

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

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for opting us.