You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to participate in Boston marathon, could you book my ticket from Dallas?

ASSISTANT: Can I know your travelling dates?

USER: My itinerary dates are June 17 and June 19.

ASSISTANT: Do you have any preference?

USER: I am looking for a connecting flight.

ASSISTANT: Let me know your airport codes.

USER: My genesis and terminus airport codes are DFW and BOS.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Can I know your name?

USER: Ruth Gonzalez here.

ASSISTANT: Found ticket with American airlines for price 100.

USER: Please book my ticket.

ASSISTANT: Your ticket is booked in an economy class having flight number 1009.

USER: Thank you for assisting me.

ASSISTANT: Thank you.