You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello.

ASSISTANT: How may I help you?

USER:  I am a doctor, I have to attend a seminar on cerebral palsy. Could you book my flight ticket from AUS to MCO?

ASSISTANT: Please provide your itinerary dates.

USER: Sure, my trip dates are 01/08 and 01/10.

ASSISTANT: Please hold on for a moment.

USER: Ok, I need a direct flight.

ASSISTANT: May I know your name?

USER: My name is John Martin.

ASSISTANT: Sorry Martin, no flight is available on your route.

USER: No problem, thank you for your help.

ASSISTANT: Thank you for choosing us.