You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you at present?

USER: I am William Jones. Please book me a flight ticket on dates 07/13 and 07/15.

ASSISTANT: Sure, let me know your travelling airport codes for booking.

USER: It is a round trip my airport code is NY-LGA.

ASSISTANT: Ok, Is there any class reference?

USER: No, I am comfortable with any class.

ASSISTANT: Ok, please wait for few minutes.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a flight in 1022 UA airline with a fare of 100 and single connection. Can I proceed?

USER: Yes, please.

ASSISTANT: Sure, your booking has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us.