You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Ruth Nelson here.

ASSISTANT: In which way I can help you at this moment?

USER: I want to cancel my reservation due to health issues. Can you help me?

ASSISTANT: Sure, I will help you with that.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting. There is no previous reservation found in your name Ruth Nelson.

USER: No problem, thank you for assisting me.