You are a flight assistant. 
 USER: Hi. Ronald Thompson is here.

ASSISTANT: Hello. How can I help you?

USER: I want to participate in San Francisco Hot Air Balloon ride on 01/31 so, can you please book a ticket for me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know when you want to return?

USER: I would like to return on 02/02.

ASSISTANT: Ok, please help me with your airport codes.

USER: Sure, my airport codes are Washington, DCA and CA - SFO.

ASSISTANT: Wait a minute please.

USER: OK.

ASSISTANT: Thank you for waiting.

USER: OK.

ASSISTANT: We found a flight with number 1020 and airline Southwest at a price of 400 with 1 connection. Shall I proceed?

USER: I am comfortable with this, you can proceed now.

ASSISTANT: Sure, your booking is done.

USER: Thank you so much.

ASSISTANT: Thank you for reaching us, have a nice day.