You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book a flight ticket from OAK to LGA, can you help me in booking a flight ticket?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my travelling dates are Jul 18 and Jul 20.

ASSISTANT: Do you want connecting flight?

USER: I prefer maximum one connection.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Sure, Ruth Parker here.

ASSISTANT: We found an UA airline, flight number: 1005, price: 100 with one connection.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.