You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to cancel my reservation, due to my health issues, so please help me in the cancellation.

ASSISTANT: Sure, I'm here to help you always. May I know your good name please?

USER: Myself Pamela Collins.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: I found your reservation and I have successfully cancelled it.

USER: Thank you.

ASSISTANT: Thank you for choosing us , have a nice day.