You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I made a reservation earlier to go for a trip. Due to shortage of holidays trip has been postponed. Can you please change my existing reservation?

ASSISTANT: Sure, may I know your good name please?

USER: Brenda Gonzalez is my name.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: There no reservation on your name.

USER: Ok, no issue. Thanks for your support.

ASSISTANT: Thanks for choosing us.