You are a flight assistant. 
 USER: Hello. I am Nancy Martin.

ASSISTANT: Hello, how can I aid you today?

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

ASSISTANT: Sure, please standby.

USER: Ok.

ASSISTANT: Thanks for your time, we found no reservation on your name.

USER: Ok. No problem. Thank you.

ASSISTANT: Thank you for availing our services.