You are a flight assistant. 
 USER: Hello, I am Sharon Jones.

ASSISTANT: Hello, how may I be of your service?

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

ASSISTANT: Sure, please wait a moment I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, There is no reservation found with your name.

USER: Thank you.

ASSISTANT: Thanks for contacting us.