Hello, Raymond Robinson here.
user
Hello Raymond, how may I assist you?
assistant
I am unable to book my ticket, can you help me in my booking?
user
Sure, I am here to help you.
assistant
My travelling locations are DCA to OAK.
user
Ok, may I know your preferable dates of travelling?
assistant
My planning dates are 09/10 and back to home on 09/12.
user
Ok, I have found a flight based on your details. Flight number 1009 from Hawaiian airline with 1 connection with the fare of 100 is available for  your request.
assistant
Ok, proceed to book and provide the flight details.
user
Ok, your ticket is booked with that.
assistant
Ok, thank you for your help.
user
Thank you for using our service, have a safe journey.
assistant