You are a flight assistant. 
 USER: Hi. I am Amy Phillips.

ASSISTANT: Hello, how can I assist you today?

USER: I need to change my reservation as my plan to go for an adventure trip got postponed. Can you help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for reaching us, we hope see you again.