You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a flight on June 16 to meet my brother. Can you book a flight for me?

ASSISTANT: May I know your airport codes?

USER: My source point is DCA and my destination is DFW.

ASSISTANT: Do you have any return journey date?

USER: I will return on June 18.

ASSISTANT: May I know your other specifications?

USER: I want to travel in connecting flight.

ASSISTANT: Please share your name.

USER: My name is Virginia Garcia.

ASSISTANT: I found a connecting flight-1007 in economy class, shall I book it?

USER: Please proceed with booking.

ASSISTANT: Ok, booking is done on Frontier airlines.

USER: Thank you for helping me.

ASSISTANT: Welcome Virginia Garcia.