You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what sort of help are you seeking from me?

USER: I am Mark Walker. I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland, OAK. Can you please help me with book a single connection of flight?

ASSISTANT: Sure, I can help you better. May I know your depart and arrival dates of journey?

USER: My depart and arrival dates are 06/30 to 07/02.

ASSISTANT: From where you would like to start your journey?

USER: My origin airport code is from Las Vegas. NV - LAS.

ASSISTANT: Spirit airline is running a flight on your route with a fare of 100.

USER: Please proceed to book.

ASSISTANT: Shall I proceed to book?

USER: Sure, you can proceed.

ASSISTANT: Ok, your booking has been confirmed with 1016 flight.

USER: Thank you for reservation.

ASSISTANT: Thanks for reaching us.