You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

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

ASSISTANT: Sure, let me check the status and revert to you.

USER: Sure, take your time.

ASSISTANT: We are unable to find any reservation by the name you provided.

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

ASSISTANT: Thank you for choosing us.