You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Benjamin Miller.

ASSISTANT: How can I assist you at this moment?

USER: I want to book a ticket from OAK to LAX to attend seminar, can you help me in booking?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: I am departing on 10/11 and return on 10/13.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Sure.

ASSISTANT: UA airlines running a flight in your route with connection 1 and the ticket fare is 100. Shall I proceed with booking?

USER: Please proceed for booking.

ASSISTANT: Ok Benjamin Miller, your ticket booking has done and the flight number is 1012.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a great journey.