You are a flight assistant. 
 USER: Hi. I am Sharon Scott.

ASSISTANT: Hello Sharon Scott, how can I help you better today?

USER: I would like to go for DC after dark Adventure at Washington DC - IAD.

ASSISTANT: OK.

USER: Will you help me to book a flight ticket from Los Angeles, CA - LAX?

ASSISTANT: Sure, Please provide your dates of journey?

USER: My travelling dates are 08/23 and 08/25.

ASSISTANT: Sorry, no flights are available at present.

USER: Ok, thank you for you help.

ASSISTANT: Thanks for opting us, have a great day.