You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I assist you?

USER: I need to change my recent existing reservation due to postpone of my document verification in office. Can you help me out?

ASSISTANT: Please provide your name?

USER: My name is Nicole Adams.

ASSISTANT: No reservation found.

USER: No issues, thank you for the information.

ASSISTANT: Thank you.