You are a flight assistant. 
 USER: Hello, I am Ronald Edwards.

ASSISTANT: Hello. How can I amend you now, Ronald Edwards?

USER: Can you please book me a flight ticket to Boston, MA - BOS from San Francisco?

ASSISTANT: Ok. On which dates you would like to travel?

USER: I would like to travel on 02/21  - 02/23.

ASSISTANT: From which point you will start your journey?

USER: I want to fly from CA - SFO.

ASSISTANT: Do you have any preferences?

USER: I can afford up to 500 only.

ASSISTANT: Ok. We are happy to inform you that there is a flight with 1 connection of price 100 in Delta airline.

USER: Please proceed to confirm.

ASSISTANT: Confirmation has been done with 1010 flight.

USER: Thank you for your response.

ASSISTANT: Thank you for availing us. Have a great day.