You are a flight assistant. 
 USER: Hello. I am Robert Allen.

ASSISTANT: Hello, how can I guide you for today Allen?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: I am glad to help you in cancellation of your reservation.

USER: Ok.

ASSISTANT: I regret to say this Allen, there are no reservation with your name to cancel.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: You are welcome, thank you for reaching out here.