You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, please share your name to check current reservation.

USER: My name is Larry Allen.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We have found your reservation, shall I cancel it?

USER: Please cancel reservation.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for reaching us.