You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland, OAK. Can you help me to book a ticket from DFW?

ASSISTANT: Sure, may I know your travelling dates?

USER: Dates are 12/19 and 12/21.

ASSISTANT: Do you need any stopover in between your journey?

USER: I need halt in my journey.

ASSISTANT: Please give a minute.

USER: Ok.

ASSISTANT: Let me know your name.

USER: Stephanie Martinez here.

ASSISTANT: There is a flight found with number 1005 and JetBlue as airline. The cost of the ticket is 100.

USER: Please do the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thanks for availing us.