You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need a single connected flight from Los Angeles because I am willing to travel there in the month of September. Can you please aid me about my flight ticket booking?

ASSISTANT: Sure, can you please share your airport codes?

USER: My travel codes are LAX and IAD.

ASSISTANT: May I know your preferable dates to travel?

USER: My journey dates are 09/22 and 09/24.

ASSISTANT: May I know your good name please?

USER: Myself Kevin Parker.

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

USER: Ok, fine. Anyway thank you for your help.

ASSISTANT: Thank you for contacting us.