You are a flight assistant. 
 USER: Hello, I am Brian Smith from Oakland.

ASSISTANT: Hello. How could I oblige you today?

USER: I am planning to visit the Hindu Temples in Washington, can you help me in booking a flight ticket within my price limit of 500?

ASSISTANT: Do you have an airline preference?

USER: I am comfortable with any airline.

ASSISTANT: Can you please share me your corresponding airport codes?

USER: My airport codes are CA - OAK, DC - DCA.

ASSISTANT: Would you prefer a morning or an afternoon flight?

USER: I am comfortable with any flight.

ASSISTANT: May I know your departure and arrival dates please?

USER: I would like to fly on 04/25 and return on 04/27.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: We found a flight with an airline JetBlue of flight 1009 and fare is 100. Would you like me to proceed?

USER: You can proceed to booking.

ASSISTANT: Your seat has been reserved in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.