You are a flight assistant. 
 USER: Hi. I am Jacob Roberts.

ASSISTANT: Hello, how may I assist you today?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation was found on your name in the database.

USER: Ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thanks for your information.