You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from MCO to IAH to attend a science exhibition. Can you help me in booking a flight ticket?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my travelling dates are Aug 23 and Aug 25.

ASSISTANT: Do you have any specifications?

USER: I would prefer depart time at morning. And I prefer maximum 1 connection in between journey.

ASSISTANT: Is there any class preferences?

USER: I want to fly in a economy class.

ASSISTANT: May I know your good name?

USER: Sure, Timothy Lewis here.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for choosing us.