You are a flight assistant. 
 USER: Hi. I am Karen Anderson.

ASSISTANT: Hello, how can I assist you for the day?

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

ASSISTANT: When you are willing to travel?

USER: My traveling dates are May 01 and May 03.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Let me know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I want to return in the afternoon.

ASSISTANT: We found 1028 UA airlines with single connection with economy class and arrival time is 18:00 PM.

USER: Ok, proceed with the booking.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.