You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you aid me to book my ticket from DEN to DFW?

ASSISTANT: Can I know your travelling dates?

USER: My travel dates are June 15 and June 17 respectively.

ASSISTANT: Do you have any preference?

USER: Make sure that connection limit is single.

ASSISTANT: Let me know your name.

USER: Jason Anderson here.

ASSISTANT: Found ticket with United airlines for price 100.

USER: Please book the ticket.

ASSISTANT: Ticket is booked in an economy class having flight number 1017.

USER: Thank you for the help.

ASSISTANT: Thank you.