You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me with changing my recent reservation?

ASSISTANT: Yes, I can help you with that. May I know your name please?

USER: My name is Brain Baker.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

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

USER: Ok, no issues. Thank you.

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