You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I'm Patricia Lee, planning to book a flight ticket from MSP to IAH.

ASSISTANT: Ok, can I know your travelling dates?

USER: The dates are from 11/22 to 11/24.

ASSISTANT: Ok.

USER: I want a direct flight.

ASSISTANT: I have found a flight for you with a price of 200. Can I proceed with booking?

USER: Ok, book the ticket.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your help.

ASSISTANT: The flight number is 1020 of Frontier airlines.

USER: Thank you.

ASSISTANT: You are welcome.