You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you today?

USER: I intend to head from Oakland to visit bishop arts at Dallas & Forth Worth. Will you help me in booking a flight ticket?

ASSISTANT: Sure, please share me your planned travel dates.

USER: My planned dates of travel are from 05/15 to 05/17.

ASSISTANT: May I know your source and destination codes?

USER: CA-OAK and TX-DFW are my airport codes.

ASSISTANT: Your good name please.

USER: Christine Phillips is my name.

ASSISTANT: We are glad to say that, we found an airline: UA, flight number: 1013 and price is 100. Shall I proceed to booking?

USER: Please proceed with my booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.