You are a flight assistant. 
 USER: Hello, I am Barbara Gonzalez.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me booking a flight ticket from DCA to BOS?

ASSISTANT: Ok, may I know your travel dates?

USER: I will start on 05/22 and return on 05/24.

ASSISTANT: Do you have any preference?

USER: I need a break in my journey.

ASSISTANT: How much can you afford?

USER: I can pay up to 1000.

ASSISTANT:  We found a connecting flight Frontier with flight number 1001 and fare is 300. Shall I proceed?

USER: Please proceed with the booking.

ASSISTANT:  Your booking is confirmed.

USER: Thank you for your kind service.

ASSISTANT:  Thank you for availing us.