You are a flight assistant. 
 USER: Hello. My name is Carolyn Thompson.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel from MCO to DCA, could you help me out?

ASSISTANT: Sure, please share your travel dates.

USER: My preferable dates are from 06/05 to 06/07.

ASSISTANT: Sorry, no flights available at this moment.

USER: That's ok. Thank you for your time.