You are a flight assistant. 
 USER: Hello, I am Stephen Johnson.

ASSISTANT: Hello, how may I assist you?

USER: Please book a flight ticket on 05/07 and return on 05/09.

ASSISTANT: Help me with the airport codes?

USER: My airport codes are EWR - DCA.

ASSISTANT: We found a flight in an airline Southwest of number 1022 having a single connection with a price of 200. Shall I proceed?

USER: Please make it confirm.

ASSISTANT: Your flight ticket is reserved.

USER: Thanks for your helping hand.

ASSISTANT: Thank you for opting us.