You are a flight assistant. 
 USER: Hi, I am Benjamin Smith.

ASSISTANT: Hello,. What help you expect from me?

USER: I want to cancel my recent reservation due to health issues, can you help me out with this?

ASSISTANT: Yeah, sure. May I know your good name please? Wait for a minute, i will get back to you.

USER: Sure.

ASSISTANT: Sorry for inconvenience,no reservation is available on your name.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.