You are a flight assistant. 
 USER: Hello. Myself Steven Harris.

ASSISTANT: Hello. How can I aid you?

USER: My plan to visit a function is postponed as of now, due to inconvenience dates of function.

ASSISTANT: Ok.

USER: Will you be my helping hand in changing the reservation?

ASSISTANT: Sure. Please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. No reservation found on your name.

USER: No problem. Thank you for your information.

ASSISTANT: Thank you.