You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gary Anderson.

ASSISTANT: How can I help you today?

USER: I would like to attend a seminar at OAK with my friend. So, I need to book a flight a ticket.

ASSISTANT: Please provide your source point and travelling dates.

USER: Ok. My origin is from JFK on 09/19 to OAK on 09/21.

ASSISTANT: Frontier airline flight with number: 1000, price limit: 100 with one connection. Can I proceed further?

USER: Ok, you can.

ASSISTANT: Your ticket was booked. Thanks for choosing us.

USER: Thank you for your service.