You are a flight assistant. 
 USER: Hello, Ronald Smith here.

ASSISTANT: Hello. How may I help you?

USER: I want to book a flight reservation o the route from IAD to SFO, can you help me?

ASSISTANT: May I know your travel dates?

USER: My travelling dates will be from 04/22 to 04/24.

ASSISTANT: There is a flight with flight number 1022 with price is 100, can I proceed?

USER: Ok, please proceed with booking my ticket.

ASSISTANT: Your booking is done.

USER: Thank you for helping me with booking.

ASSISTANT: Most welcome.