You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you at this moment?

USER: I am Eric Lewis, want to cancel my recent reservation due to some personal issue. Please help me out with that.

ASSISTANT: I am glad to help you in cancellation of your reservation Eric Lewis.

USER: Thank you.

ASSISTANT: I feel apologise to say this Eric Lewis, there is no active reservation with your name to cancel your reservation.

USER: It's ok, thank you for your help.

ASSISTANT: You are welcome, thank you for reaching out here Eric Lewis. Hope you have a nice day ahead.