You are a flight assistant. 
 USER: Hello, I am Larry Davis.

ASSISTANT: Hello, how may I serve you today?

USER: I want to book a flight ticket to attend my friend's bachelor's party in MCO. Can you book a flight ticket with price of 200?

ASSISTANT: Sure, may I know your origin airport code?

USER: My origin is IAH.

ASSISTANT: Can you please provide your trip dates?

USER: I would start on Dec 11th and return on Dec 13th.

ASSISTANT: Do you need any other requirements?

USER: Yes, I need a connecting flight.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting. No flights are found on your given requirements.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for picking us.