You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Evans.

ASSISTANT: How may I guide you today?

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

ASSISTANT: Sure, I am glad to help you with that. Please wait a moment to check your previous reservation.

USER: Ok, take your own time.

ASSISTANT: We regret to inform you that there is no reservation found on your name in our records.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.