You are a flight assistant. 
 USER: Hello,. I am Anna Young.

ASSISTANT: Hello, how may I assist you today/.

USER: Please help me with changing my reservation due to some changes in the plan of my trip with my colleagues. Can you please help me with that?

ASSISTANT: Sure, please wait for a while.

USER: Thank you.

ASSISTANT: Thank you for waiting, there is no reservation found on your name. Thank you for contacting us.

USER: Ok, no issue. Thank  you.