You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Owing to an emergency, I just want to cancel my recent reservation. Can you please help me with cancellation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: On whose name, you want to cancel the reservation?

USER: My name is Cynthia Wilson.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found on your name to cancel.

USER: Ok, thanks for your help.

ASSISTANT: Thank you for choosing us.