You are a flight assistant. 
 USER: Hello, I am Christine Evans.

ASSISTANT: Hello Christine Evans, what kind of service you are expecting from us?

USER: I intend to visit World Great Center on 10/31, can you please check available flights for me?

ASSISTANT: Sure, to check for flights I need your takeoff and landing airport codes?

USER: I want to takeoff from Seattle, WA - SEA. I would like to land on New York, NY - JFK.

ASSISTANT: Ok, when you would like to return from New York?

USER: I would like to return on the third day of my visit that is on 11/02.

ASSISTANT: Ok. If you require any other comforts then, please mention here?

USER: I need a single lay by in between journey.

ASSISTANT: Ok, please wait. I will check and get back to you within a moment.

USER: Sure.

ASSISTANT: Sorry for the inconvenience caused, currently we are not providing any flights on your desired route.

USER: OK, no problem I will go with some other airline.

ASSISTANT: Thanks for approaching us, hope to serve you better next time.

USER: Thank you for the information.