You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carol Green.

ASSISTANT: How can I assist you today?

USER: I would like to book a flight ticket from IAD to OAK, can you please help me?

ASSISTANT: Sure, will you mention your travelling dates that you want to travel?

USER: Sure, my travel dates are July 13 and July 15.

ASSISTANT: How much you can afford for your journey?

USER: I can afford 200.

ASSISTANT: Do you have any preferences about your class?

USER: No, I am comfortable with any class to travel.

ASSISTANT: Please give me a moment.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Ok, please confirm my ticket.

ASSISTANT: Your ticket is booked. The flight number is 1004 and the airline is JetBlue.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.