You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Katherine Roberts.

ASSISTANT: How can I assist you today?

USER: I would like to book a ticket from EWR to HOU, can you please help me out?

ASSISTANT: Ok, can I know your trip dates please?

USER: I am travelling on these dates 09/10 and 09/12.

ASSISTANT: Ok, please hold on for a minute.

USER: Sure.

ASSISTANT: Flight-1011 of Delta airlines is available for you with price 200.

USER: Ok, you can proceed.

ASSISTANT: Roberts, your ticket is booked.

USER: Thank you for your services.

ASSISTANT: Thank you for contacting us.