You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I aid you?

USER: I am Joshua Brown. Owing to an emergency, I want to cancel my recent reservation. Can you please help me?

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Thanks for your time.

USER: Ok.

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

USER: Not an issue, thanks for your information.

ASSISTANT: Thank you for choosing us.