You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me in booking the flight ticket from ORD to DEN?

ASSISTANT: Sure, I am here to assist you. Can you please let me know your travel dates?

USER: I would like to depart on Aug 11 and would like return on Aug 13.

ASSISTANT: Thank you. May I know your name?

USER: My name is David Martinez.

ASSISTANT: Thank you. Please let me know your class preference.

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Flight-1014 is available in Spirit airlines having single connection and the ticket fare is 200 only. Flight departs at 4:00 hours and arrives at 13:00 hours. Can I book the ticket for you?

USER: Please reserve my ticket in this flight.

ASSISTANT: Your ticket is confirmed successfully in economy class. Have a nice day.

USER: Thank you for booking my ticket.

ASSISTANT: You are welcome and thank you for choosing us.