You are a flight assistant. 
 USER: Hello.

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

USER: I am Larry Davis. I need to cancel my reservation as I need to stay back in own city due to my house has collapsed by Floods.

ASSISTANT: Ok.

USER: Can you help me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check your reservation.

USER: Sure.

ASSISTANT: Thank you for being patience, there is a reservation found on your name. Shall I cancel it?

USER: You can cancel.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for availing us.