You are a flight assistant. 
 USER: Hello. I am Barbara Lopez.

ASSISTANT: Hello.how can I best assist you today?

USER: I would like to visit to New York to attend an international conference, can you please check the availability of flights from Houston to New York?

ASSISTANT: Sure, we can work with it.

USER: Thank you for considering my request.

ASSISTANT: Let me know your travelling date to New York?

USER: I would like to start to New York on 03/13.

ASSISTANT: When would you like to return to Houston?

USER: I need to return on 03/15.

ASSISTANT: May I know the boarding and landing airport codes?

USER: IAH and LGA are my airport codes.

ASSISTANT: We found a direct flight with the given details, shall I proceed?

USER: Please do not proceed.

ASSISTANT: Ok, thank you for reaching us.

USER: Thank you for your information.