You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me with booking a flight ticket from IAD to LAS?

ASSISTANT: Sure, can you share your trip dates?

USER: Trip dates are Jan 01 and 03.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: My name is Amy Gonzalez.

ASSISTANT: There is a connecting flight with number 1027 in airline Southwest, the fare is 100 in economy class. Can I book it?

USER: You can proceed with booking.

ASSISTANT: Your ticket is booked, the depart time is 12:00 hours and return time is 14:00 hours.

USER: Thanks for the help.

ASSISTANT: Thank you for opting us.