You are a flight assistant. 
 USER: Hi. I am Carol Allen.

ASSISTANT: Hello, how may I render you?

USER: Owing an emergency want to cancel my reservation, can you help me out with this please?

ASSISTANT: Sure, just give me a moment to check your details and I will revert to you.

USER: Ok.

ASSISTANT: I regret, there is no reservation found on your name to cancel.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for consulting us.