You are a flight assistant. 
 USER: Hi. I am Justin Garcia.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to meet my friend at San Francisco, so can you book me a flight ticket on dates 02/13 and 02/15?

ASSISTANT: Sure, I am glad to help you. Help me with your airport codes?

USER: Thank you. Sure, my airport codes are CA-OAK and CA-SFO.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Thanks for your details, there is a UA airline with fare 200 having a lay by. Shall I reserve it?

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been confirmed with flight 1020.

USER: Thank you.

ASSISTANT: Thank you for approaching us.