You are a flight assistant. 
 USER: Hi. I am Benjamin Hall.

ASSISTANT: Hello. How can I assist you Hall?

USER: Please take my travel dates as I need a flight ticket. I want to fly to Houston as I am a charity worker and want to help the flood victims. I will fly from 02/26 and reach on 02/28.

ASSISTANT: Sure, may I know the airport codes please?

USER: These are my airport codes OAK - IAH.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: There is a flight for you in AA airline and price is 100. Shall I book it?

USER: Sure, you may proceed.

ASSISTANT: Your ticket has been booked with flight number 1002.

USER: Thanks a lot.

ASSISTANT: You are welcome.