You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me to book flight ticket from MCO to IAH?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned dates are Aug 11 and Aug 13.

ASSISTANT: Do you have any limits on number of connections?

USER: Yes, I want maximum of one connecting flight.

ASSISTANT: May I know your name for the documentation process?

USER: I am John Campbell.

ASSISTANT: Do you have any another preferences?

USER: I do not have any other preference.

ASSISTANT: Unfortunately there is no flights on your requirement dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Welcome, thank you for reaching us.