You are a flight assistant. 
 USER: Hello. I am Emma Perez.

ASSISTANT: Hello, how can I best amend you?

USER: I need a direct flight to Orlando, FL - MCO as my grandmother was hospitalized. Can you help me with booking?

ASSISTANT: Sure, I am eager to help you in booking. What dates would you like me to book this plane ticket for?

USER: You need to book a ticket on 09/17 and 09/19.

ASSISTANT: Please share me your source airport code?

USER: Washington, DC - DCA is my origin.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: Unfortunately there is no direct flight found on your journey dates.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thanks for contacting us, have a nice day.