You are a flight assistant. 
 USER: Hi, I am Brenda Nelson.

ASSISTANT: Hello, how can I assist you today?

USER: I am florist and I want to celebrate flower festivals in Washington DCA. Can you make a reservation from Las Vegas LAS?

ASSISTANT: Sure, please share me your travelling dates?

USER: Sure, my journey dates are 05/12 and 05/14.

ASSISTANT: Do you have any sprcifications?

USER: I need a direct flight.

ASSISTANT: Thanks for your details. Sorry to say you that there are no flights with your specifications.

USER: Ok, no worries at all. Thank you for your help.

ASSISTANT: Thank you for reaching us.