You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today/.

USER: I would like to meet my brother at Orlando, can you please reserve flight ticket from DEN to MCO?

ASSISTANT: Sure, Can you please share your preferable journey dates?

USER: Sure, my travelling dates are Dec, 16 and 18 respectively.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight to travel.

ASSISTANT: May I know your name please?

USER: Samuel White here.

ASSISTANT: Is there any specifications?

USER: No, thank you for asking.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Thank you for reaching us.