You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to reach DCA, as I have an entrance test there. Can you please help me in reserving my flight from LAS?

ASSISTANT: Sure, let me know your travelling dates?

USER: Thank you, my journey dates are Aug 17th and Aug 19th.

ASSISTANT: Do you have any connection limit?

USER: I prefer a flight which has maximum of a single connection.

ASSISTANT: Is there any other specification?

USER: I don't have any other specifications regarding my journey.

ASSISTANT: Can I know your name?

USER: My name is Jessica Green.

ASSISTANT: We found a connecting flight 1021 in American Airline with fare 600 and class is business. Shall I proceed?

USER: Ok, please reserve it.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you for availing us.