You are a flight assistant. 
 USER: Hi, myself Jack Thomas.

ASSISTANT: Hello Jack, how may I help you?

USER: I need your help in booking my flight ticket from ATL to IAD, can you please help me?

ASSISTANT: Sure, I can help you. May I know your journey dates?

USER: Sure, I would like to depart on 01/17 and return on 01/19.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Spirit airlines with flight 1015 is available on your route.

USER: That's fine for my journey, you can proceed for booking the ticket.

ASSISTANT: Your ticket is reserved.

USER: Thank you very much for your help.

ASSISTANT: Thank you for choosing us.