You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to travel from DEN to JFK as a business trip.

ASSISTANT: Sure, let me know your trip dates please?

USER: My journey dates are 12/13 and 12/15.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Would you like any break in between your journey?

USER: I need break in my journey.

ASSISTANT: Are there any particular timings for travelling?

USER: I am comfortable with any timings.

ASSISTANT: Do you want to fly in economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: Can you please mention your name to proceed further?

USER: Eric Lee here.

ASSISTANT: United Airlines has a connecting flight with number 1001 for fare 200, shall I proceed?

USER: Go ahead.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you so much.

ASSISTANT: Thank you for opting us and have a safe flight.