You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Gregory Campbell.

ASSISTANT: Ok.

USER: I am planning to visit Comic con exhibition in ATL, can you please book a flight ticket from DEN?

ASSISTANT: Sure, we are here to help you. Can you share me your trip dates?

USER: My trip dates are Feb 13th and Feb 15th.

ASSISTANT: Do you need any halt in your journey?

USER: Yes, I need a halt.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: There is a connecting flight with fare of 100 and 1020 flight number. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your seat has been reserved with Frontier airline in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.