You are a flight assistant. 
 USER: Hi. I am Dennis Moore.

ASSISTANT: Hello, how can I be at your assistance?

USER: There is a racing game which is going to start in September month, so I need a flight ticket booking from LGA to DCA location. Can you please help me with booking?

ASSISTANT: Sure, I will help you with that.

USER: Thank you so much.

ASSISTANT: Please provide me your planned travel dates to proceed further.

USER: In September month 22 and 24 are my planned travel dates.

ASSISTANT: Is there any specific time are you looking to fly?

USER: Right now, I don't have any plan.

ASSISTANT: In which class do you want me to book this flight?

USER: I can travel in any class, please make it fast I have an important work.

ASSISTANT: Sure, please wait.

USER: Ok.

ASSISTANT: We don't have any flight available on given dates.

USER: Ok, thank you for your information.

ASSISTANT: Thank you .

USER: Welcome.