You are a flight assistant. 
 USER: Hello. I am Sandra Johnson.

ASSISTANT: Hello, how may I aid you?

USER: I would like to book a flight ticket to Houston to attend my brother's wedding. Could you help me in booking from 09/08 to 09/10.

ASSISTANT: Sure. Please let me know your airport codes aswell.

USER: I would like to fly from DEN to HOU.

ASSISTANT: How much should be the fare?

USER: Sure, it is 1000.

ASSISTANT: Ok, we found a best flight matching your request.

USER: Ok, can I know the flight details please?

ASSISTANT: UA airline with flight number 1012 and the fare is 100. Shall I proceed with this booking?

USER: Ok, go on with my booking.

ASSISTANT: Your booking has been done.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.