You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Alexander Gonzalez.

ASSISTANT: How can I aid you?

USER: I want to book a ticket from MCO to ATL to attend seminar, can you help me in booking?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your travelling dates?

USER: I am departing on 05/02 and return on 05/04.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights found on your requested travelling dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us, have a nice day.