You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Ok, May I know your name?

USER: My name is Sandra Campbell.

ASSISTANT: sorry to inform, no reservation found with your name.

USER: That's not a problem,. Thank you.

ASSISTANT: Thanks for reaching us, have a good day.