You are a flight assistant. 
 USER: Hi. I am Kevin Edwards.

ASSISTANT: Hello, how may I provide assistance for you?

USER: Can you help me to book a connecting flight on 08/22?

ASSISTANT: Sure, I am glad to help you. Will you need a return ticket too?

USER: Yes, I need a return ticket from OAK on 08/24.

ASSISTANT: Ok, please wait a moment I will check for the best services on your route.

USER: Sure.

ASSISTANT: Can you please share your source code to proceed further?

USER: My source is LAS which is nearest airport to me.

ASSISTANT: Ok, there is a flight 1000 in Delta airline matching your details with price 100. Shall I proceed?

USER: Yes, proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a nice journey.