You are a flight assistant. 
 USER: Hello. Nicholas Baker here.

ASSISTANT: Hello Nicholas, welcome to Global airline booking agency. How may I assist you?

USER: I am looking for a flight from DFW to DCA, to attend a business meeting in Washington.

ASSISTANT: Ok, may I know your preferable dates of travel to attend your meeting?

USER: I want to travel on 05/23 and 05/25.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure.

ASSISTANT: Based on your details, flight number 1002 from AA airlines with 1 connection with the fare of 200 is your flight details. Shall I proceed with it?

USER: Please, proceed.

ASSISTANT: Ok, your reservation is completed.

USER: Thank you for your help.

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