You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please book my flight ticket from IAD to LGA?

ASSISTANT: Sure, can you share your trip dates?

USER: Sure, I have to depart on June 19th and return back on June 21st.

ASSISTANT: Do you have any connection limit?

USER: I need a flight having single connection.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Are there any other specifications?

USER: No.

ASSISTANT: Please forward your name.

USER: My name is Daniel Roberts.

ASSISTANT: We found a connecting flight of fare 300 with airline Spirit and number 1005. Can I book?

USER: Yes, please book the ticket.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you very much.

ASSISTANT: Thank you for availing us.