You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Susan Robinson, can you help me to book a flight from DCA to ORD?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are 11/10 and 11/12.

ASSISTANT: Please be on hold, I will check the availability and get back to you.

USER: Ok.

ASSISTANT: Ok, there is a flight 1000 in Hawaiian airline matching your details with price 200. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: You are welcome.