You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I help you for the day?

USER: I am Susan Taylor. My cousin wedding got postponed, so I want to change my existing reservation. Could you please help me in changing the reservation?

ASSISTANT: Sure, please stand by.

USER: Sure.

ASSISTANT: Thanks for waiting, we do not found any active reservation in your name.

USER: Not an issue. Thank you.

ASSISTANT: Thanks for consulting us, hope to serve you again.