You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to travel from DTW to HOU. Can you help me to book a flight ticket?

ASSISTANT: Sure, I will help you. Can I have your planned travel dates please?

USER: I want to travel in the flight on Feb 15 and  Feb 17.

ASSISTANT: May I know your name please?

USER: Margaret Williams.

ASSISTANT: Do you need a connecting flight?

USER: I want to have a connecting flight.

ASSISTANT: May I know your other preferences?

USER: No.

ASSISTANT: I found an economy class in Frontier airlines with fare 100 and it is a connecting flight. Can I book your ticket?

USER: Book the ticket for me.

ASSISTANT: Ok, your booking is confirmed with flight number 1020.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.