You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you?

USER: I am Anna Baker. While checking my recent reservation status I mistakenly cancelled my reservation and again I need booking to SFO from DEN, could you mind help me in booking?

ASSISTANT: Sure, may I know your trip dates please?

USER: My trip dates are from 12/09 to 12/11.

ASSISTANT: According to your intent, there is a flight available on your requested dates routed by AA airlines with one drop of flight. Can I proceed to confirm your ticket reservation with this flight?

USER: Please proceed.

ASSISTANT: Ok, your ticket is booked with the flight number 1009.

USER: Thank you.

ASSISTANT: Most welcome.