You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Eric Evans here. Can you please help me in booking a flight ticket from MSP to HOU?

ASSISTANT: Can you share your trip dates?

USER: Sure, my travel dates are from May 20 to May 22.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: In which class do you want to travel?

USER: I am ok with any class.

ASSISTANT: At what time do you want to depart and return on?

USER: I would like to return in the evening.

ASSISTANT: Thank you for your details, there is a flight 1027 in Frontier airline which returns in the evening. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed with a economy class with a lay by.

USER: Thank you for booking.

ASSISTANT: Thank you.