You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I abet you today?

USER: I am Nicole Hill. I made a reservation earlier as I planned to attend a meeting with my colleagues due to some technical issues it has got postponed. Can you help me in changing my reservation?

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

USER: Ok, no worries at all. Thank you for your quick response.

ASSISTANT: Thank you for reaching us.