You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: As my meeting with my client got postponed at New York, can you please help me by changing my existing reservation to New York?

ASSISTANT: May I know your name for checking?

USER: My previous reservation has done with the name Gregory Rodriguez.

ASSISTANT: Give me a minute.

USER: Sure, take your own time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Oh! That seems something went wrong while booking the ticket previously.

ASSISTANT: Thank you for opting us.

USER: Thank you for providing information.