You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Deborah Hill. I want to book a flight to Orlando to meet my mother, can you help me for booking a flight ticket?

ASSISTANT: Sure, may I know your source and destination codes?

USER: Source is BOS and destination is MCO.

ASSISTANT: Please share your travelling dates.

USER: 12/08 and 12/10 are my travelling dates. Make sure that I need a direct flight.

ASSISTANT: Sorry to say that, no direct flights were available with your given details.

USER: Ok, thank you.

ASSISTANT: Thank you for opting us.