You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Prepone plan came into a picture owing to announcement of birth of baby boy. So I need to cancel my recent reservation.Can you please help me in that?

ASSISTANT: Sure, may I know your name?

USER: Joseph Perez here.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found with your name.

USER: Ok, no worries. Thanks for your informtion.

ASSISTANT: Thank you for opting us.