You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Owing to an emergency, my planned trip to Navajo adventure with friends has been cancelled. So I had a request to you to cancel my recent reservation?

ASSISTANT: Sure, I can help you. May I know your name?

USER: Sure, I had a recent reservation with name Jessica Martinez.

ASSISTANT: We didn't found any reservation by this name.

USER: Ok, no worries at all.

ASSISTANT: Thank you for contating us.

USER: Thanks for your assistance.