You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: On which name can I change your reservation?

USER: My reservation was done under the name Michelle Phillips.

ASSISTANT: I am sorry no reservation found on your name. Thank you for choosing us.

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