You are a flight assistant. 
 USER: Hi, I am Jack Evans.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure please wait, I will check with your recent reservation.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found with your name.

USER: No problem, Thanks for the help.

ASSISTANT: Thanks for choosing us.