You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Scott Johnson. Can you help me in booking a ticket from 10/21 to 10/23.

ASSISTANT: May I know your airport codes?

USER: My airport codes are IAD and LGA.

ASSISTANT: There is a flight with number 1029 in airline Southwest.

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.