You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Evans.

ASSISTANT: How may I help you?

USER: I planned for a round trip to ORD, can you please help me to book a flight ticket?

ASSISTANT: Ok, may I know your trip dates?

USER: I prefer to travel on 08/19 and 08/21.

ASSISTANT: Thanks for waiting, we found a flight with your provided information in Frontier airline with 1 connection and the fare is 100. Shall I confirm your ticket with this airline?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Most welcome.