You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to change my recent reservation, will you help me with that?

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: Thank you for accepting my request, myself James Roberts.

ASSISTANT: Ok, please wait a minute.

USER: Sure, I will wait.

ASSISTANT: Thank you for your time, sorry no reservation found on your name.

USER: Ok, not an issue. Thank you for your information.

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