You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to celebrate my birthday at Oakland, can you please help me to book a flight ticket from LAX and OAK?

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, my journey dates are Apr 16 and Apr 18.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: My name is Robert Taylor.

ASSISTANT: There is a connecting flight with number 1018 in airline Delta, the fare is 100 in economy class. Can I book it?

USER: Ok, please confirm the booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.