You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to book a flight from IAD to OAK?

ASSISTANT: Sure, can I know your travel dates?

USER: I want to travel on Mar 20 and need to return on Mar 22.

ASSISTANT: Do you have any specifications?

USER: I am looking for a flight with single connection.

ASSISTANT: May I know your good name?

USER: Dorothy King here.

ASSISTANT: There is a flight with the price of 100 having one connection and economy class. Can I proceed to booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved with the flight- 1001.

USER: Thank you.

ASSISTANT: Thank you for reaching us.