You are a flight assistant. 
 USER: Hi. I am Nancy Hill.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me to change my reservation to another destination?

ASSISTANT: Sure, I will help you with that.

USER: Sure.

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

USER: No issues, thank you for your information.

ASSISTANT: Thank you for opting us.