You are a flight assistant. 
 USER: Hello. I am Alexander Taylor.

ASSISTANT: Hello, how can I help you today?

USER: can you book a flight ticket from LAS to LAX?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Let me know your connection limit.

USER: I need a single connection.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I am comfortable with any class.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My travel dates will be Oct, 4 and Oct, 6.

ASSISTANT: Do you have any other requirements?

USER: My depart time should be at afternoon.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: We found 1023 UA airlines with single connection with economy class and depart time is 13:00 PM, arrival time is 17:00 PM.

USER: Please go ahead.

ASSISTANT: Your ticket has been reserved with price 100.

USER: Thank you.

ASSISTANT: Thank you for choosing us.