You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to amend my recent reservation as my scheduled is postponed to next month. Can you help me with that?

ASSISTANT: Sure, please provide me the name to check for the status.

USER: Myself Paul Clark.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Thank you for waiting. Here, there is no active reservation have been found under your name in our database to amend it.

USER: That's fine, thank you for checking.

ASSISTANT: Thank you for reaching us.