You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight ticket from DEN to IAH. Could you help me in booking?

ASSISTANT: Sure, I will help you. May I know your name?

USER: My travelling dates are from June 18 - 20. Dorothy Adams.

ASSISTANT: Thank you for sharing your journey dates. Let me know your connection limit.

USER: I prefer for connecting flight.

ASSISTANT: Which class would you prefer for your journey?

USER: No.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Please, wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, there is a flight available with fare 200 and single connection in Frontier airline having 1015 as flight number. Shall I confirm it?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.