You are a flight assistant. 
 USER: Hello, Mark Edwards here.

ASSISTANT: Hello, how may I aid you today?

USER: I have to attend the meeting with the president at White House, can you please book me a flight ticket from IAH to IAD?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your planned travel dates?

USER: I need to go on 05/09 and I will come back on 05/11.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We found a flight from Southwest airline of flight number 1023 having a halt and fare is 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with an economy class.

USER: Thank you for assisting me.

ASSISTANT: Thank you for opting us.