You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket from IAH to MCO, can you please help me for booking?

ASSISTANT: Sure, can you share your trip dates?

USER: I would like to travel on 12/24 to return on 12/26.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: My name is Nancy Walker.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.