You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, can you please share me your travelling dates?

USER: My planned travel dates are June 02-04.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Karen Lewis.

ASSISTANT: We found 1025 United Airlines with single connection and price of 100, shall I proceed?

USER: Ok, please go ahead.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.