You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I am Benjamin Jackson. I am planning to attend a seminar at New-York, help me in booking my flight ticket with one halt.

ASSISTANT: Sure, I am blissful to help you. Can you please share your source and destination airport codes?

USER: My source point is AZ-PHX. My destination point is NY-LGA.

ASSISTANT: May I know your dates of travel?

USER: My journey dates are from 10/28 to 10/30.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your preferred dates.

USER: Its ok, thank you for your assistance.

ASSISTANT: Thank you for availing us.