You are a flight assistant. 
 USER: Hello. I am Dorothy Parker.

ASSISTANT: Hello, how may I serve you today?

USER: I want to travel from JFK to IAD. Can you help me to book a flight ticket?

ASSISTANT: Sure, please share me your planned journey dates?

USER: I want to travel in the flight on Aug 29 and Aug 31.

ASSISTANT: May I know your connection limit?

USER: I want to travel in a connecting flight.

ASSISTANT: Please mention your depart and return flight timing?

USER: I want to return in morning time.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your given journey data.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for reaching us, we hope see you again.