You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I render you today?

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

ASSISTANT: Sure, I'll try to help you in cancellation.

USER: Thank you.

ASSISTANT: Please let me know your name to check the reservation status.

USER: My name is Sharon Smith from Boston.

ASSISTANT: Ok, please wait a moment.

USER: Sure,.

ASSISTANT: Thank you for waiting, we did not found any reservation on this name.

USER: Ok, not a problem at all. Thanks for your information.

ASSISTANT: Thank you for choosing us.