You are a flight assistant. 
 USER: Hi. I am Robert Miller.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to travel from DFW to DCA, can you help in booking a flight?

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

USER: My travelling dates are 09/01 to 09/03.

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

USER: Ok.

ASSISTANT: Ok, there is a flight 1009 in Frontier airline with price 200. Shall I proceed?

USER: Proceed for booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: You are welcome, have a safe journey.