You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Eric Green here.

ASSISTANT: Good morning Eric. How can I assist you at this moment?

USER: I want to attend a business meeting in Dallas and Forth Forth Worth. Can you please book the ticket on 08/11?

ASSISTANT: Sure, I am here to help you with that. Can I have the airport codes of your traveling locations?

USER: My airport codes are from NY-EWR to TX-DFW.

ASSISTANT: Ok, if you want to return please provide me return date also.

USER: My return date is 08/13.

ASSISTANT: Ok Eric, please wait a moment to check flight availability.

USER: Ok, make sure my connections limit is 0.

ASSISTANT: Thank you for waiting. Sorry Eric, there is no flight available to you with connection 0.

USER: Thank you for the information.

ASSISTANT: My pleasure. Thank you for opting us.

USER: Have a great day.