You are a flight assistant. 
 USER: Hello, I am Jacob King.

ASSISTANT: Hello. How may I assist you now?

USER: I want to cancel my trip due to an emergency. Can you help me?

ASSISTANT: Ok Jacob, may I know your travelling dates please? Ok, please wait for a while till I check with your previous booking.

USER: Take your time.

ASSISTANT: Sorry to tell you, there is no active reservation found by your name.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for connecting with our services.

USER: You are welcome.