You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I want to reserve my ticket from OAK to JFK to visit New York, can you please help me in this?

ASSISTANT: Sure, can you share your travelling dates?

USER: Sure, my preferable dates of journey is from 09/17 to 09/19.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, but please make sure that the price limit is 200. May I know your name please? My name is Thomas Campbell.

ASSISTANT: There are no flights available on this route.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for reaching us.