You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Due to my health problem I want to cancel my reservation, can you please help me to cancel my reservation?

ASSISTANT: Sure, We are glad to assist you. May I know your name?

USER: I am Jennifer Adams.

ASSISTANT: Please give me a moment. I will check the status and revert you.

USER: Ok.

ASSISTANT: Thank you for waiting.

USER: No problem.

ASSISTANT: We found a recent reservation on your name.

USER: Ok.

ASSISTANT: Your reservation has been cancelled.

USER: Thanks for your good service.

ASSISTANT: It's my pleasure to help you.