You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to book a flight to Chicago for vacation. Can you book a flight for me?

ASSISTANT: Sure, can you help me with your trip source and destination?

USER: My source point is BOS and my destination is ORD.

ASSISTANT: What are your trip dates?

USER: I will travel on Feb 12 and return on Feb 14.

ASSISTANT: Do you need any connections?

USER: Yes, I want a single connection.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Dorothy Jones.

ASSISTANT: Connecting flight number 1017 with price 700 in business class is available. Is it ok?

USER: Yes, It is good for me.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.