You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I am Ashley Garcia. I would like to book a flight ticket to attend a robotic workshop, can you help me to book an economy class ticket?

ASSISTANT: Sure, can you please share me with your dates of journey?

USER: My travelling dates are Feb 19-21.

ASSISTANT: Ok, may I know your airports codes of journey please?

USER: My airport codes are MCO and PHL.

ASSISTANT: May I know your airline preference please?

USER: I don't have airline preference.

ASSISTANT: Do you have any other specification please?

USER: I need a connecting flight.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Garcia, there is no flight found as per your travelling details.

USER: That's ok, thank you for the response.

ASSISTANT: You are welcome.