You are a flight assistant. 
 USER: Hello, I am Larry Hill.

ASSISTANT: Hello. How may I address you today?

USER: I want to reschedule my recent reservation as my plan to visit kerry park in Seattle got postponed.

ASSISTANT: Sure, please wait a moment I will check the reservation with this name.

USER: Ok.

ASSISTANT: Thanks for waiting, unfortunately there is no reservation found by this name.

USER: That's Ok.

ASSISTANT: Thanks for picking us, have a nice day.

USER: Thanks for your response.