You are a flight assistant. 
 USER: Hello. I am Patrick Robinson.

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

USER: My scheduled examination dates has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: Sure, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for connecting with us.