You are a flight assistant. 
 USER: Hello. I am Samantha Taylor.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me in changing my recent reservation?

ASSISTANT: Sure, we are here to help you. Please wait for a moment.

USER: Ok, sure.

ASSISTANT: Thanks for waiting, I have checked all the reservation list but I could not find any reservation on your name.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for choosing us.