You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Mary White. I would like to book a flight ticket to New York to attend my cousin brother's marriage.

ASSISTANT: Ok.

USER: Could you help me in booking from 04/21 to 04/23.

ASSISTANT: Sure, I am perky to help you. Can you please let me know your airport codes?

USER: Ok, I would like to fly from IAH to EWR.

ASSISTANT: Do you have any specifications?

USER: I need a connection in between.

ASSISTANT: Please wait for a moment.

USER: My price should not exceed 200. Ok.

ASSISTANT: I am here to inform you that, there is a flight available with Delta airline, flight number 1028 with fare 200 and one lay by.

USER: Ok, proceed.

ASSISTANT: Shall I reserve it?

USER: Ok, reserve.

ASSISTANT: Your flight has been reserved successfully.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.