You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you for today?

USER: Owing to an emergency, my planned trip to Navajo adventure got cancelled, so I want you to cancel my recent reservation.

ASSISTANT: I am here to help you about that, can you please let me know your name to check the reservation status?

USER: Sure, Melissa Taylor here.

ASSISTANT: Sorry Melissa Taylor, there is no active reservation under your name in our booking list.

USER: Ok, no worries at all. Thank you for your kind information.

ASSISTANT: You are welcome, thank you for the reaching us.