You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Emily Thompson.

ASSISTANT: How may I help you?

USER: I have a plan to meet my friend in Washington, can you help me for booking a flight ticket from BOS to DCA?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travelling dates are 01/05 and 01/07.

ASSISTANT: Please wait for a moment.

USER: Make sure that my connection limit should be 0.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.

USER: Welcome.