You are a flight assistant. 
 USER: Hello, I am Donald Gonzalez.

ASSISTANT: Hello, how may I help you at this moment?.

USER: I would like to go to a Zoo in Orlando, so could you please book a ticket for me?

ASSISTANT: Can I have your journey dates?

USER: I would like to go on 05/20 and return back on 05/22.

ASSISTANT: Please share your airport codes.

USER: My airport codes are LGA and MCO.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry, no flights are available on those dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us. Sorry for inconvenience.

USER: Welcome.