You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Prepone plan came into picture owing to announcement of birth of baby boy, will you help me to change my recent reservation?

ASSISTANT: Sure, we are here to aid you.

USER: Thanks.

ASSISTANT: May I know your good name please ?

USER: My good name is Ashley Clark.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: No issues, thank you.

ASSISTANT: Thank you for choosing us.