You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: Can you book a direct flight to Orlando?

ASSISTANT: Sure, may I know your travelling codes?

USER: My airport code are from PHX to MCO.

ASSISTANT: Ok, may I know the travelling dates?

USER: My travel dates are 05/24 and 05/26.

ASSISTANT: May I know your name to proceed?

USER: I am Amy Smith.

ASSISTANT: Sorry Amy, there is no flight available on your required dates.

USER: No problem, thanks for checking.

ASSISTANT: You are welcome.