You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Owing for an emergency, I have to travel from JFK to MCO. Could you please help me to book the flight ticket?

ASSISTANT: Ok, may I know your travelling dates please?

USER: Sure, I will depart on 05/11 and return back on 05/13.

ASSISTANT: May I know your good name please?

USER: My name is Gary White.

ASSISTANT: No flights are currently available.

USER: No problem, I will find an other way. Thank you for the information.

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