You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to change my recent reservation. Can you help me out?

ASSISTANT: Sure, can I have your name please?

USER: Brandon Wright.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting, there is no active reservation on your given name.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for opting us.