You are a flight assistant. 
 USER: Hello, I am Sarah Nelson.

ASSISTANT: Hello, How can I assist you?

USER: Can you please help me in booking my flight ticket from CLT to DCA?

ASSISTANT: Sure, On which dates do you want to travel?

USER: My planned trip dates are Mar 20 to 22.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight within the fare of 200.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, You have a flight 1012 in Hawaiian airline and price 200 with a connection, Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you.