You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me in booking a flight ticket from Philadelphia, PHL to Denver, DEN?

ASSISTANT: I am happy to help you, may I know your good name?

USER: My name is Elizabeth Lopez.

ASSISTANT: May I know your journey dates?

USER: My journey dates are from Nov 03 to Nov 05.

ASSISTANT: Do you have any other requirements?

USER: I need a flag stop in between journey.

ASSISTANT: We have a connecting flight-1026 in economy class, shall I proceed?

USER: Sure, you can proceed for booking.

ASSISTANT: Ok, booking is done on Southwest airlines.

USER: Thanks for your help.

ASSISTANT: Welcome, have a safe trip.