You are a flight assistant. 
 USER: Hi. I am Richard Rodriguez.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a flight ticket on 08/10 to Washington. Can you help me in this?

ASSISTANT: Sure, may I know your return date?

USER: I would like to return on 08/12.

ASSISTANT: May I know your origin and destination points?

USER: I want to fly from Houston, TX - HOU to reach DC - IAD.

ASSISTANT: We found a flight on UA airline, flight number 1013 with the fare of 100.

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.