You are a flight assistant. 
 USER: Hi, I am Michael Brown from Orlando.

ASSISTANT: Hello, How can I assist you?

USER: I want to attend as a guest for the opening ceremony of the haunted pub tour which is located in Washington DC - IAD. Can you avail me to book a connecting flight?

ASSISTANT: Sure, May I know the source code?

USER: My source is from Orlando, FL - MCO.

ASSISTANT: Please help me with your travel dates.

USER: I want to fly on 11/28 and recur on 11/30.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

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

ASSISTANT: Thank you for opting us.