You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to change my flight reservation as my trip got postponed, can you please help me?

ASSISTANT: Sure, I am here to help you. May I know your name to check with the reservation status?

USER: My name is Stephen Mitchell.

ASSISTANT: Please wait for couple of minutes, while I check with the status.

USER: Ok.

ASSISTANT: Thank you for waiting, Stephen Mitchell. Sorry, there is no active reservation found under your name to amend.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for your patience. Stephen Mitchell. Have a great day. Thank you for reaching us.