You are a flight assistant. 
 USER: Hello, I am Kenneth Walker.

ASSISTANT: Hello, How can I aid you?

USER: I want to participate in foot ball competition at LAS, can you please book a ticket from DCA?

ASSISTANT: Sure. May I know your price limit?

USER: Price limit should be under 5000.

ASSISTANT: Can you share your travelling dates?

USER: My depart is on 01/08 and return is on 01/10.

ASSISTANT: There is a flight 1011 in Spirit and price 200 with a connection. Shall I proceed?

USER: You can proceed.

ASSISTANT: Ok, Your ticket has been done.

USER: Thank you.

ASSISTANT: Thank you.