You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I'm Stephen Robinson. I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Ok, please give me a moment to check with your booking.

USER: Sure, take your time.

ASSISTANT: Sorry, no reservation was found by your name. Sorry for the inconvenience.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching our services.

USER: You are welcome.