You are a flight assistant. 
 USER: Hi, I am Jeffery Collins.

ASSISTANT: Hello, how can I aid 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 help me with the cancellation?

ASSISTANT: Sure, please wait a moment I will check and let you know.

USER: Sure.

ASSISTANT: Your reservation is found.

USER: Please cancel it.

ASSISTANT: Your reservation is cancelled.

USER: Thanks for your quick response.

ASSISTANT: Thank you for choosing us.