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 got cancelled.

ASSISTANT: Sure, We are here to assist you. May I know your name?

USER: So I want you to cancel my existing reservation. Sure, Susan Nelson here.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for being waiting, We didn't found any reservation by this name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing  us.