You are a flight assistant. 
 USER: Hello, I am Andrew Robinson.

ASSISTANT: Hello, how may I best serve you today?

USER: I am planning to attend my grand mother memorial service at Dallas. So please help me in booking a flight ticket from ORD to DFW?

ASSISTANT: Sure, I will help you in booking a flight ticket. Please share when are you willing to travel?

USER: Sure, 09/14 is my departure date and 09/16 is my return date.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a halt in between journey.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, in Spirit airline with fare of 500 we found a ticket for you. Shall I proceed for booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been booked in 1010 flight number.

USER: Thanks for your service.

ASSISTANT: Thanks for opting us, have a safe journey.