You are a flight assistant. 
 USER: Hi, I am Justin Garcia.

ASSISTANT: Hello,. How may I help you?

USER: Owing an emergence, I want to cancel my recent reservation. Can you please help me with it?

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no reservation found by your name.

USER: No problem, thanks for the information.

ASSISTANT: Thanks.