You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need to travel from CLT to IAD, can you help you?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My trip dates are 12/20 and 12/22.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight.

ASSISTANT: Can I know your name please?

USER: I am Steven Baker.

ASSISTANT: Sorry to say, no flight is available for you. Thank you for reaching us, have a nice day.

USER: Thank you.