You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: Being an artist, I would like to go and attend the film festival at Washington, DC-DCA with my family. For this I would like to book a flight ticket from Charlotte, NC-CLT. Will you help me in this?

ASSISTANT: Sure, can you please provide your take off dates and return dates?

USER: Sure. My starting date is on 06/11 and return date is on 06/13.

ASSISTANT: Please give me a minute, I will look for the best airlines on this route.

USER: Ok.

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

USER: No, problem. Thank you for your information.

ASSISTANT: Can you please provide your name?

USER: I am Samuel Smith.

ASSISTANT: Thank you for reaching us.