You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Sandra White here.

ASSISTANT: How can I help you today?

USER: Reserve a flight ticket for me that is from DCA to MCO.

ASSISTANT: Sure, I am here to help you. Can I know your travelling dates?

USER: My price limit is less than 200. My travelling dates for journey are 01/16 to 01/18. I need a connecting flight.

ASSISTANT: Ok, please give me minute.

USER: Sure.

ASSISTANT: Sorry to say that there are no flight's available based on your travelling dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for approaching us.