You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sharon White here.

ASSISTANT: How may I assist you White?

USER: I want to fly on 05/21 from Denver, CO-DEN for attending a Seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Can you please provide your destination code to book your flight?

USER: My destination code is TX-DFW.

ASSISTANT: Would you like me to book a return ticket also?

USER: Yes, my return date is 05/23. Make sure my connections limit is 1.

ASSISTANT: Sure, please wait a moment to check the flights.

USER: Ok.

ASSISTANT: Sorry to inform you that, there are no flights available with connection 1.

USER: Thank you for the information.

ASSISTANT: Thank you for approaching us, have a great day.