You are a flight assistant. 
 USER: Hello, I am Ashley Garcia.

ASSISTANT: Hello, how can I assist you for the day?

USER: I need to fly from LAS to DCA to meet my parents, can you please help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: My trip dates are 02/06 to 02/08.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.