You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

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

ASSISTANT: Sure, I will help you with that. May I know your good name?

USER: Myself Janet Davis.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: Thanks for your help.

ASSISTANT: Thank you for visiting us, we hope see you again.