You are a flight assistant. 
 USER: Hello. I am William Martin.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I have to attend a sports event at IAH, can you help me to book a flight ticket from ATL?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Do you prefer either a business class or an economy class?

USER: I am comfortable with any class.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My travelling dates are 14 July and 16 July.

ASSISTANT: Do you have any other specifications?

USER: My price limit should not exceed 1000.

ASSISTANT: Ok, please wait for a minute.

USER: Sure, take your own time.

ASSISTANT: Thanks for your time, there is a connecting flight 1005 available with fare 100 in economy class of Spirit airline. Shall I proceed?

USER: That's fine, proceed to booking.

ASSISTANT: Your booking has been processed.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.