You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what assistance you are expecting from us?

USER: Myself Alexander Nelson.

ASSISTANT: Nice to meet you Nelson.

USER: I need to attend a cultural event in Washington DC so please help me with flight ticket booking.

ASSISTANT: Sure, I am happy to assist you with finding a flight.

USER: Thank you.

ASSISTANT: Can I know your boarding and landing airport codes?

USER: Sure, I would like to travel from IAD to DCA as these are very much near to my locations.

ASSISTANT: Ok, please let me know in which dates you are willing to travel?

USER: Sure, I need to travel on dates of 08/19 and 08/21.

ASSISTANT: Ok, can you please allow me some time to check the availability of flight?

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting.

USER: It's ok.

ASSISTANT: According to the details you provided, I found a best flight for you, the  airlines AA with connection limit 1 and the ticket fare is 200 only. Would you like me to proceed with booking?

USER: That is fine, please proceed with booking.

ASSISTANT: Sure. I have successfully confirmed  your flight ticket  with the flight service number 1022.

USER: Thank you for your help.

ASSISTANT: It's my pleasure to help you. Thank you for choosing our travel agency.

USER: Most welcome.

ASSISTANT: Have a nice day.