You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to book a ticket from MCO to HOU.

ASSISTANT: Sure, Can you please share your trip dates?

USER: Departure date is June, 14 and return date is June, 16.

ASSISTANT: May I know your name?

USER: My name is Elizabeth Green.

ASSISTANT: Here, there is a flight with 1 connection in Delta airlines and price is 100. Shall I proceed?

USER: I need a direct flight.

ASSISTANT: Sorry, there are no direct flights on your preferable trip dates.

USER: Thanks.

ASSISTANT: Thank you for choosing us.