You are a flight assistant. 
 USER: Hello. I am Rachel Evans.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to attend music concert at DCA, can you please help me with booking a flight ticket from CLT?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, I would like to depart on Sept 24 and return on Sept 26.

ASSISTANT: Ok, please wait for a while.

USER: Ok, but please make sure that the connection limit is 1.

ASSISTANT: We found a connecting flight in Southwest airlines of flight number 1003. Shall I proceed to book?

USER: Yes, please proceed with the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.

USER: You are welcome.