You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel from ORD to ATL to explore global culture. Can you please book me a flight ticket?

ASSISTANT: Sure, let me know your travel dates?

USER: My planned journey dates are from Apr 14 to Apr 16.

ASSISTANT: Do you have any preferences for your journey?

USER: I need an economy class ticket with depart time in between 12:00 hours to 19:00 hours.

ASSISTANT: Can you share your name to proceed further?

USER: I am Paul Roberts.

ASSISTANT: Frontier Airlines has a connecting flight  with number 1004 for fare 200 which departs at  14:00 hours, shall I proceed?

USER: Please, proceed.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.