You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to visit Millennium Park at Chicago, could you please help me with booking a flight ticket from CLT to ORD?

ASSISTANT: Sure, I am happy to help you. Can I have your travelling dates?

USER: I would like to depart on July 13th and return on July 15th.

ASSISTANT: Do you have any lay by in between journey?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any other specifications for you?

USER: I have no other specifications.

ASSISTANT: May I know your good name?

USER: I am Eric Thomas.

ASSISTANT: We found a connecting flight in Frontier airline with a fare of 200 which departs at 20:00 and return at 7:00. Shall I proceed for booking?

USER: Please confirm the booking.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1002.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for availing us.