You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me to book a flight ticket from IAD to MSP?

ASSISTANT: Sure, can you please provide your planned journey dates?

USER: My travel dates are Feb 12 and Feb 14.

ASSISTANT: Please help me with your name for booking purpose?

USER: My name is Helen Allen.

ASSISTANT: Do you need any connecting flight?

USER: I am comfortable with any flight.

ASSISTANT: Do you have any preferences?

USER: No, I don't  have.

ASSISTANT: I found an economy class in Delta airlines with fare 200 and it is a connecting flight. Can I book your ticket?

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

ASSISTANT: Ok, your booking is confirmed with flight number 1016.

USER: Thank you.

ASSISTANT: Thank you for approaching us.