You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: As my dance competition was postponed, I would like to change my existing reservation.

ASSISTANT: Please let me now your name.

USER: Will you help me in this with the name of Justin Thompson?

ASSISTANT: Sorry, there was  no reservation found on your name. Thanks for choosing us.

USER: Ok, not a problem.