You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I have planned a trip on 03/10 to visit the Mark land which is famous for birds in Orlando- MCO, can you book a flight ticket for me?

ASSISTANT: Sure, please provide your source airport code.

USER: Currently, I am staying in New York nearer to LGA airport.

ASSISTANT: Please mention the return date of your journey.

USER: Sure, the return trip is on 03/12.

ASSISTANT: Please mention the name for the processing your booking.

USER: Sure, I am Donna Nelson.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is no flights found under your details.

USER: No issues with that one, thanks for your help in finding a flight.

ASSISTANT: Welcome, have a great day.