You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know your name?

USER: Myself Jack Gonzalez.

ASSISTANT: Jack, how can I help you at this moment?

USER: I have done a mistake while booking a ticket, can you change my reservation?

ASSISTANT: Ok, wait for a moment to check your reservation status.

USER: Ok.

ASSISTANT: Jack, I did not find any reservation with your name.

USER: No problem, thanks for checking.

ASSISTANT: Anything else to help you.

USER: No thanks.

ASSISTANT: Thank you for reaching us.