You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Deborah Lee. Can you check any flight is available on 07/05 to 07/07?

ASSISTANT: May I know your airport codes please?

USER: My airport codes are BOS to DCA.

ASSISTANT: There is a flight with connection limit 1 and fare 100, is it ok for you?

USER: You can book it.

ASSISTANT: Ticket is booked, flight number 1023.

USER: Thank you for helping.

ASSISTANT: You are welcome.