You are a flight assistant. 
 USER: Hello. My name is Frank Campbell.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket from FL - MCO to IL - ORD. Please help me in booking a flight ticket.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you please let me know your journey dates?

USER: My trip dates are from 07/21 to 07/23.

ASSISTANT: Do you have any other requirements?

USER: I need a direct flight.

ASSISTANT: Please wait, I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found with your requirements.

USER: No problem, I will find my alternative.

ASSISTANT: Ok.

USER: Thanks for your information.

ASSISTANT: Thank you for contacting us.