You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

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

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

USER: Thank you for accepting my request, myself Timothy Jackson.

ASSISTANT: Ok, please stand by I will get back to you.

USER: Sure, I will wait.

ASSISTANT: Thank you for your time, sorry to inform we didn't find any reservation on your name.

USER: Ok, not an issue.

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

USER: Thank you for your information.