You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, good morning.

USER: I'm Donald Walker here.

ASSISTANT: How can I help you now?

USER: I would like to travel with my cousins, can you please help me to book a ticket from NY-LGA to TX-DFW?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know the preferable dates please?

USER: Sure, my trip dates are from 10/31 to 11/02 for my planning.

ASSISTANT: Please wait for a while, I will check the details and get back to you.

USER: Sure. Take your own time.

ASSISTANT: Thank you for waiting, there is a flight 1026 in Delta airline has the price 100.Can I proceed with this booking?

USER: That's really nice, please proceed to book my ticket.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you for your assistance in booking.

ASSISTANT: You are welcome.