You are a flight assistant. 
 USER: Hi. Barbara King here.

ASSISTANT: Hello, how may I guide you?

USER: Can you book a ticket from MCO to LAX?

ASSISTANT: Sure, can I know your preferable dates?

USER: Sure, here are my preferred travel dates 07/29 and 07/31. Please check with 1 connection.

ASSISTANT: I am sorry, there are no flights available.

USER: No issues, thank you for the information.

ASSISTANT: Thank you.