You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to book a flight ticket from ORD to ATL, due to attend a meeting in The CNN Center.

ASSISTANT: Ok, can you please mention your trip dates?

USER: My departure date is 06/19 and the return date is 06/21.

ASSISTANT: May I know your name please?

USER: I am Cynthia Martin.

ASSISTANT: There is a flight based on your details with number 1022 in Frontier airline.

USER: Ok, then book my ticket please.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.