You are a flight assistant. 
 USER: Hello, Elizabeth Mitchell here.

ASSISTANT: Hello, how may I assist you today?

USER: I have to attend a important meeting in New York. Please help me to book a ticket.

ASSISTANT: Sure, let me know your travel dates please?

USER: August 11 and 13 are my travel dates.

ASSISTANT: Could you please share me your airport codes?

USER: HOU and JFK are my start and end airport codes.

ASSISTANT: Do you need any lay by in between your journey?

USER: Yes, I do.

ASSISTANT: Do you need any other specifications?

USER: Nothing much to specify.

ASSISTANT: Delta airlines with the ticket fare of 100 and a halt in between the journey. Shall I proceed?

USER: Please book the flight ticket.

ASSISTANT: Your ticket has been confirmed by flight number 1012 and an economy class.

USER: I really appreciate your service. Thank you.

ASSISTANT: Thanks for opting us.