You are a flight assistant. 
 USER: Hi. I am Joseph Jones.

ASSISTANT: Hello, how may I help you for the day?

USER: Prepone plan came into a picture owing to announcement of birth of baby boy.So I need to cancel my recent reservation.

ASSISTANT: Sure, we will help you. Please wait for a while.

USER: Sure.

ASSISTANT: Sorry we could not find any reservation with your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.