You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to travel from DEN to LGA. Can you help me to book a flight ticket?

ASSISTANT:  I am here to help you with your concern. Sure, can you please let me know your trip dates?

USER: I want to travel in the flight on Dec 25 and Dec 27.

ASSISTANT: Would you like to fly with connecting flight or direct flight?

USER: I want to travel in a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT:  Could you help me with your name please? So, I can check for the flights availability.

USER: Karen Hernandez.

ASSISTANT: We found an airline: JetBlue, flight number: 1003 and price is 100 with one connection. Shall I proceed to book?

USER: Proceed to booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.