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

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for some time.

USER: Ok.

ASSISTANT: Thanks for waiting. We found reservation on your name. Shall I cancel it?

USER: Yes, you can.

ASSISTANT: Ok, your reservation has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.