You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephen Robinson.

ASSISTANT: How can I help you?

USER: I would like to visit Oakland to meet my brother, can you please help me to book a flight ticket from HOU to OAK?

ASSISTANT: Can I know your travelling dates.

USER: Sure, my travel dates are Feb 12 and Feb 14.

ASSISTANT: Do you have any preference?

USER: I need a single connection flight.

ASSISTANT: Found ticket with airline Delta for price 100 having flight number 1005.

USER: Ok, please proceed.

ASSISTANT: Ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thanks.