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 IAD to PHL?

ASSISTANT: Sure, May I know your travelling dates?

USER: My planned travel dates are Feb 23-25.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other preferences?

USER: I want to return in the afternoon.

ASSISTANT: May I know your name?

USER: I am Nicole Smith.

ASSISTANT: You have a connecting flight 1011 in UA airlines and price 200, Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.