You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Kevin Baker. I would like to change my reservation as I am going to New York, can you please help me out?

ASSISTANT: Sure, please wait a while.

USER: Thank you. Sure, take your time.

ASSISTANT: On whose name did you reserved the ticket ?

USER: On the name of Kevin Baker.

ASSISTANT: There is no reservation on your name in our database.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.