You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you find a flight for me from DEN to ORD?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: Ok, my journey dates are from Sept 18 to 20.

ASSISTANT: May I know your name?

USER: Sure, I am Rebecca Jones.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single connection.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Here, there is a flight with 1 connection in UA airlines and price is 100. Shall I book?

USER: Yes, please.

ASSISTANT: Ok, your ticket has been booked with the flight 1005.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.