You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Due to my ill health, I would like to cancel my recent reservation. Can you help me with this?

ASSISTANT: Sure, I will help you with cancelling, please hold on for a moment to check your reservation status. May I know your name please?

USER: Thank you. My previous reservation has done with my name Jerry Garcia.

ASSISTANT: Jerry, there is no any active reservation with your name in my database.

USER: Ok, not an issue. May be my brother has already cancelled my reservation on behalf of me. Thank you for providing information.

ASSISTANT: Thank you for reaching us.