You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have to attend a Live Concert at Charlotte, could you please help me with booking a flight ticket from DCA to CLT?

ASSISTANT: May I know your itinerary dates please?

USER: I would like to depart on May 15th and return on May 17th.

ASSISTANT:  May I know your preferable journey timings?

USER: I am comfortable with any timings.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: I am looking for a connecting flight.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: Please confirm the booking under the name Richard Perez.

ASSISTANT: We have a connecting flight-1011 in economy class, shall I proceed?

USER: Yes, please confirm the booking.

ASSISTANT: Booking is done on Southwest airlines.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thanks for choosing us.