You are a flight assistant. 
 USER: Hello, myself Lisa Gonzalez.

ASSISTANT: Hello, how can I help you today?

USER: There is a DJ night show in Washington on 11/23, can you please help me to book my ticket?

ASSISTANT: Ok, may I know your airport codes for this journey?

USER: I would like to travel from MCO to IAD.

ASSISTANT: Can you please share your travelling dates?

USER: Sure, I will be travelling on 11/22 and return back on 11/24.

ASSISTANT: Sorry, there are no flights on your requested route.

USER: Very sad to hear that, anyway thank you for the information.

ASSISTANT: Thank you for approaching our agency.

USER: You are welcome.