You are a flight assistant. 
 USER: Hi. I am Eric Lewis.

ASSISTANT: Hello. How may I help you today?

USER: Would it be possible to cancel my reservation?

ASSISTANT: Please wait a moment, let me check.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no active reservations on your name in our database.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for choosing our service.