You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me to change my reservation to other dates?

ASSISTANT: Sure, can I know your name please?

USER: Sure, my name is Patrick White.

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

USER: No issues, thank you.

ASSISTANT: Thank you for approaching us.