You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: My reservation was done under the name Sharon Martin.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sharon Martin, there is no reservation found active under your name to do changes in that.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us, have a nice day.