You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Daniel Carter here. I want to visit MGM Grand Las Vegas with my friends, could you book my flight ticket from Denver?

ASSISTANT: May I know your travel dares please?

USER: My trip dates are 03/21 and 03/23.

ASSISTANT: May I know your airport codes please?

USER: I will be travelling from DEN to LAS.

ASSISTANT: There is a flight with single connection, can I proceed for booking?

USER: Please proceed.

ASSISTANT: Your booking is done in 1014 flight.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.