You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to travel from LGA to DEN. Can you please help me to book a ticket?

ASSISTANT: Let me know your travel dates.

USER: I want to start on July 29 and return on July 31.

ASSISTANT: Do you have any preference?

USER: I would like to travel in a connecting flight.

ASSISTANT: Let me know your departure and arrival timings.

USER: I am comfortable to travel at any timings.

ASSISTANT: Can I know your name?

USER: Brandon Lee here.

ASSISTANT: Connecting flight can be booked with airline Spirit for price 100 having flight number 1025.

USER: You can proceed to booking.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.