You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Gary Jones here.

ASSISTANT: How can I aid you today?

USER: Due to inconvenience of my work, I want to change my reservation. Can you please help me for that?

ASSISTANT: Sure, I will aid you with that.

USER: Thanks.

ASSISTANT: Please hold on a moment, I will check your reservation status.

USER: Ok, I will wait.

ASSISTANT: There is no previous reservation available in your name Gary Jones.

USER: Anyway, thanks for the information.

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