You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Owing to an emergency, my meeting with client got cancelled. So I want you to cancel my existing reservation.

ASSISTANT: Sure, can you give me your name?

USER: Sure, Christine Davis here.

ASSISTANT: We have found a reservation with your name, and it is cancelled successfully.

USER: Thank you for your kind service.

ASSISTANT: Thank you for reaching us.