You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Robert Parker. I would like to visit  Yosemite Adventure at Washington, can you please book me a ticket?

ASSISTANT: Sure, when are you planning to travel?

USER: I would like to travel on 03/27 and return on 03/29.

ASSISTANT: Can you please share your codes of the airport, where you want to travel and catch the flight?

USER: My airport codes are from ORD to IAD.

ASSISTANT: Please share your specifications.

USER: I need a halt.

ASSISTANT: Delta airlines with single connection and price is 100 of 1023 flight. Shall I proceed for booking?

USER: Please book this ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us.