You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: Can you help me to book a flight ticket from OAK to ORD?

ASSISTANT: Sure, on what dates are you planning to make your trip?

USER: My travel dates are Mar 04 and Mar 06.

ASSISTANT: How many lay by's do you need?

USER: I need connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Which airline would you prefer to travel?

USER: I am comfortable with any airlines.

ASSISTANT: May I know your name?

USER: I am Christine Rodriguez.

ASSISTANT: Ok, Delta airline with flight number 1003 is going on your way with 1 connection in between and the fare is 100. Is that fine?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: I have you booked on a flight in economy class.

USER: Thank you.

ASSISTANT: Thank you for picking us.