You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Nancy Smith here. Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure,I will help you with that.

USER: Thank you.

ASSISTANT: Just give a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to inform this, no reservation is found on your name in our database.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.