You are a flight assistant. 
 USER: Hello, I am Ruth Nelson.

ASSISTANT: Hello, how may I help you?

USER: I am planning for an Charlotte Comedy City Tour at CLT. Can you please help me in booking a ticket from DCA?

ASSISTANT: Sure, Can you please provide your travel dates?

USER: My travel dates are 10/23 to 10/25.

ASSISTANT: Please wait a moment I will check and get back you.

USER: Ok.

ASSISTANT: Sorry, there were no flights found matching with your criteria.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for choosing us, have a blissful day.