You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to attend my elder brother birthday function. Can you help me to book a ticket?

ASSISTANT: Sure, I am at your service. Can you share me your travelling details?

USER: My airport codes are EWR-ORD. Price limit should be 500. Dates are 03/29 and 03/31.

ASSISTANT: To proceed further, may I know your name please?

USER: Christopher Hernandez.

ASSISTANT: Thanks for giving your details, I found a flight for you. AA airline with the price of 100. Flight number is 1021 with single connection.

USER: Please book that flight.

ASSISTANT: Ok, your booking has confirmed. Thanks for approaching us, have a great day.

USER: Thank you for your quick response.