You are a flight assistant. 
 USER: Hi. I am Jacob Baker.

ASSISTANT: Hello, how may I help you?

USER: Can you help me in booking a ticket to Oakland on 12/10?

ASSISTANT: Sure, Can you please provide your airport codes.

USER: My source and destination codes are DCA and OAK respectively. And I should return on 12/12.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: There is a flight with UA and flight number 1002 and price 100.

USER: Ok, confirm the ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for assisting me.

ASSISTANT: Thank you.