You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amanda Harris.

ASSISTANT: How can I assist you, Amanda?

USER: I am planning to visit Washington, can you please book me a ticket from ORD to DCA?

ASSISTANT: Ok, when are you planning your journey?

USER: My preferable journey dates are from 07/21 to 07/23.

ASSISTANT: Please give me a moment.

USER: Ok, I need 1 connection limit flight on this route.

ASSISTANT: I found a flight in Delta airlines with price 200. Shall I book the ticket for you?

USER: Please book my ticket with this airlines.

ASSISTANT: Your ticket is confirmed and the flight number is 1002.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for utilising our services.