You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Charles Hall, want to travel from DCA to OAK. Please help me.

ASSISTANT: Sure, I am glad to help you. Could you please share your travel dates?

USER: My travelling dates are from 03/03 to 03/05.

ASSISTANT: Thank you for waiting, there is a flight with 1 connection in Southwest airlines and price is 300. Can I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked with the flight 1020.

USER: Thank you.

ASSISTANT: Thank you for reaching us.