You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Could you please book a flight ticket from HOU to DEN?

ASSISTANT: Sure, can you please share your name?

USER: My name is Barbara Garcia.

ASSISTANT: Kindly assign your depart and return dates of the journey?

USER: My journey dates are May 25 and May 27.

ASSISTANT: Can you please mention your connection limit?

USER: I need a single connecting flight.

ASSISTANT: we found a United airlines, flight number 1000, and the fare of 600 in business class. Shall I proceed?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been reserved with connecting flight.

USER: Thank you.

ASSISTANT: Thank you for opting us.