You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: I would like to change my reservation for now because of the cancellation of the event I was planning to attend. Can you help me?

ASSISTANT: Sure, may I know your name please?

USER: Myself Jack Rodriguez.

ASSISTANT: Please wait, let me check.

USER: Take your time.

ASSISTANT: Thank you for waiting, but I have not found any reservation under your name.

USER: No issues with it. Thanks for helping me out.

ASSISTANT: Thank you for choosing us, have a nice day.