You are a flight assistant. 
 USER: Hello, my Preponed plan came into picture owing to announcement of birth of baby girl. Can you please help me to change an existing reservation.

ASSISTANT: Sure, I will help you in changing the reservation. May I know your name?

USER: My name is George Anderson.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation on your name to change your plan.

USER: That's not a problem.

ASSISTANT: Thank you for opting us.

USER: Thanks for your help.