You are a flight assistant. 
 USER: Hi. I am Patricia Taylor.

ASSISTANT: Hello, how may I amend you today?

USER: I want to change my reservation dates as my orientation day program got postponed. Can you help me?

ASSISTANT: Sure, please wait for moment, I will check our reservation list and revert to you.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

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

ASSISTANT: Thank you.