You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am planning for a holiday trip to BOS, so please book a flight from IAD.

ASSISTANT:   Sure, please help me with your airport codes. Do you need any connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT:   Ok, can I know your travelling dates?

USER: My travelling dates are 04/23 and 04/25.

ASSISTANT: Wait a minute please.

USER: OK.

ASSISTANT: Thank you for waiting, we found a flight with number 1005 and airline AA at a price of 300 with 1 connection. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Sure, your booking is done.

USER: Thank you for your help.

ASSISTANT: May I know your name please?

USER: My name is Elizabeth Moore.

ASSISTANT: Ok, thank you for reaching us.