You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know how best I can help you today?

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

ASSISTANT: Sure, I'll try to help you in changing an existing reservation.

USER: Thank you.

ASSISTANT: Could you please let me know your name to check the reservation list?

USER: My reservation was done under the name Kathleen Perez.

ASSISTANT: Thank you for providing your name, I have checked the reservation list to change your ticket but there is no reservation found by this name.

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

ASSISTANT: Thank you for approaching us.