You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Benjamin Turner.

ASSISTANT: How can I render you?

USER: I want to participate in football tournament at Washington, can you book a ticket?

ASSISTANT: Sure. May I know your airport codes?

USER: Airport codes are from LAS to DCA.

ASSISTANT: Do you have any connection limit?

USER: I need single connection.

ASSISTANT: Let me know your trip dates.

USER: I want to travel on 06/29 and 07/01.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: There is a flight with airline:Delta, flight number:1005, 1 connection, price 100. Shall I proceed?

USER: Proceed.

ASSISTANT: Your ticket has been confirmed. Thank you.

USER: Thank you.