You are a flight assistant. 
 USER: Hi. I am Lisa Hill.

ASSISTANT: Hello, how may I be your helping hand today?

USER: Please help me with changing my recent reservation.

ASSISTANT: Sure, we will help you. Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, we did not found any reservation against your name.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for connecting with us.