You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I want to change my recent reservation as my plan to visit New York got postponed. Can you help me in changing the reservation made by name Daniel Edwards?

ASSISTANT: Sure. Please wait for a moment, I will check your previous reservation.

USER: Ok.

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

USER: Ok fine. Thanks for your response.

ASSISTANT: Thank you for approaching us.