You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Raymond Thompson.

ASSISTANT: How may I help you today?

USER: I would like to travel from OAK to IAD, could you help me out?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My preferable dates are from DEC 23-25.

ASSISTANT: Ok, may I know your connection limit please?

USER: It is 1.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Delta airlines is providing a flight on that route with ticket fare of 100, shall I proceed for booking?

USER: Please proceed.

ASSISTANT: I have successfully booked your ticket with flight-1019, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.