You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you now?

USER: I am planning to visit cloud gate in Chicago. Could you book a ticket for me from IAD to ORD?

ASSISTANT: That's good.I will help you with that. May I know the travelling dates of your journey?

USER: My travel dates are 05/23 and 05/25.

ASSISTANT: Ok, please wait for a moment.I will inform to you.

USER: Ok.

ASSISTANT: Thank you for waiting, there is a flight 1005 in UA airline has the price 100.

USER: Emily smith here. Please book my ticket.

ASSISTANT: Emily, your booking is done.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us, have a safe journey.