You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Melissa Brown.

ASSISTANT: Ok.

USER: I planning to meet my friend at Detroit, DTW. Can you please book a ticket for me?

ASSISTANT: Sure, may I know your source airport?

USER: Source code is Orlando, MCO.

ASSISTANT: Please share your journey dates.

USER: Journey dates are 02/27 to 02/29.

ASSISTANT: Let me know your connection limit.

USER: I need connecting flight.

ASSISTANT: Sorry, no connecting flights found with your given details.

USER: No problem. Thank you.

ASSISTANT: Thank you for opting us.