You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: I planned to meet my cousin in EWR, can you please help me to book a flight ticket from IAH?

ASSISTANT: Sure, I am ready to help you to book the ticket. Will you please tell me your travel dates?

USER: I prefer to travel on Nov 12 and Nov 14.

ASSISTANT: Ok, please share your preferences if any.

USER: I need a direct flight.

ASSISTANT: May I know your name please?

USER: I am Karen Nelson.

ASSISTANT: Ok, is there any other specifications?

USER: No.

ASSISTANT: There is a direct flight-1003 which departs in the evening time and returns in the evening time. Can I reserve the ticket?

USER: Ok, please confirm my booking,.

ASSISTANT: I have reserved your ticket with the United Airlines  and the ticket cost is 100. Have a safe flight.

USER: Thank you for your help.

ASSISTANT: You are welcome. Thank you for opting us.