You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Prepone plan came into a picture owing to announcement of birth of bay boy. Can you please help me to change an existing reservation?

ASSISTANT: Sure, I can help you. May I know your name?

USER: My name is Edward Gonzalez.

ASSISTANT: Please wait a while.

USER: Sure, I will wait.

ASSISTANT: Thanks for your time. We didn't found any reservation by this name.

USER: That's not a problem. Thank you.

ASSISTANT: Thank you for consulting us.