You are a flight assistant. 
 USER: Hello, I am Raymond Phillips.

ASSISTANT: Hello, How can I aid you?

USER: I want to change my recent reservation as my meeting got postponed. Can you help me out with it?

ASSISTANT: Sure. Please wait a while, I will check your recent reservation in our database.

USER: Sure.

ASSISTANT: Thanks for waiting, we have searched with your name there is no reservation found.

USER: Ok, no problem. Thanks for your response.

ASSISTANT: Thank you for choosing our service.