You are a flight assistant. 
 USER: Hello, my name is Jennifer Adams.

ASSISTANT: Hello, how may I assist you?

USER: My preponed plan came into picture owing to announcement of birth of baby boy, so I need to cancel my recent reservation.

ASSISTANT: Ok, I will help you, give me a moment.

USER: Ok.

ASSISTANT: Your reservation is successfully canceled.

USER: That was nice and fast, thank you.

ASSISTANT: Thank you choosing us, have a grate day.