You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kimberly Clark.

ASSISTANT: How may I assist you?

USER: Owing to an emergency, I would like to cancel my trip. Can you please cancel my reservation?

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Sure.

ASSISTANT: Clark, no reservation has been found on your name in our database.

USER: Its ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us.