You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kevin Lee.

ASSISTANT: How can I aid you at this moment?

USER: I am looking to book a flight ticket to meet my friend in San Francisco. Can you help me for booking a flight ticket from OAK to SFO?

ASSISTANT: Sure, I will help you with this. Can you please share your preferable journey dates?

USER: My travelling dates are Feb 17 and Feb 19.

ASSISTANT: Do you need any halt in this journey?

USER: I need a single connection for my journey.

ASSISTANT: Do you have any other preference for this trip?

USER: No, I don't have any more preferences.

ASSISTANT: Wait a moment please.

USER: Sure, I will wait for your response.

ASSISTANT: JetBlue airlines is providing connecting flight on this route with a ticket fare of 300, shall I book your ticket?

USER: Ok, please proceed for booking.

ASSISTANT: Kevin Lee, your ticket is booked in flight number 1000.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us, have a safe journey.

USER: Welcome.