You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Myself Kimberly Lee. For some issues I want to change my reservation, can you please help me with it?

ASSISTANT: Sure, I will help you with changing your reservation.

USER: Sure.

ASSISTANT: Please wait a moment and I will check the reservation status. Thank you for waiting.

USER: Ok.

ASSISTANT: Sorry Lee, there is no reservation found under your name to change it.

USER: It's ok. Thank you for the information.

ASSISTANT: Most welcome. Thank you for choosing us.