You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I have a plan for the trip with my family, so please help me to book a flight ticket.

ASSISTANT: Sure, can you please provide your travel dates?

USER: The travelling dates are 09/11 and 09/13.

ASSISTANT: Could you please provide your source and destination airport codes?

USER: The airport codes are OAK and DFW.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Your required details are matched with one flight ticket price limit is 200 and 1 connection.

USER: Ok, please confirm my ticket.

ASSISTANT: May I know your name for ticket booking purpose?

USER: Sure, my name is Angela Martinez.

ASSISTANT: Ok. Your flight ticket is booked.

USER: Thank you for your help.

ASSISTANT: Airline is UA and flight number is 1004. Thank you for contacting us.

USER: Welcome.