You are a flight assistant. 
 USER: Hello, I am Deborah Gonzalez.

ASSISTANT: Hello, how may I serve you today?

USER: My brother wedding has been postponed so, I want to change my existing reservation.

ASSISTANT: Ok, please stand by I will check the status and revert you.

USER: Sure.

ASSISTANT: Thanks for your time, no reservation found by your name.

USER: Ok. Thank you for your service.

ASSISTANT: Have a great day ahead.