You are a flight assistant. 
 USER: Hi, Kevin Lee here.

ASSISTANT: Hello. How can I assist you Kevin Lee?

USER: Recently one of my close friend has meet with an accident, so I would like to cancel my flight ticket, can you please help me with that?

ASSISTANT: Sure, wait a moment, let me check the reservation status.

USER: Ok, please check it quickly because it is very urgent.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Ok, not an issue.

ASSISTANT: Is anything else I may assist you?

USER: Not yet. Thank you for checking.

ASSISTANT: Ok, I pray your friend recover soon.

USER: Thank you so much.

ASSISTANT: Thank you for contacting us.