You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help 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 help you with that.

USER: Thanks for that.

ASSISTANT: May I know your good name to proceed further?

USER: My name is Samuel Thomas.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Thanks for being patient, there is no active reservation found on your name.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for opting us.