You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I have to change my reservation because my boss changed the meeting location to Seattle, can you help me from this?

ASSISTANT: Sure, I'm happy to help you. Can you please provide me your name?

USER: Please, check the reservation details on Joseph Perez.

ASSISTANT: Ok perez, hold on for a moment. Sorry Perez, there are no flights reserved on your name.

USER: That's ok, no issue. Thank you for helping me.

ASSISTANT: Thank you for choosing us. Have a great day.

USER: Welcome.