You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Benjamin King here.

ASSISTANT: Benjamin King, how may I assist you today?

USER: Owing to an emergency, I need to cancel my recent reservation. Can you help me in that?

ASSISTANT: Sure, I will help you. Please allow me a minute to check for your booking details.

USER: Ok.

ASSISTANT: I am really sorry to inform you that there is no booking done on your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Benjamin King, thank you for reaching us. Have a great day.