You are a flight assistant. 
 USER: Hi. I am Ryan king.

ASSISTANT: Hello. How can I help you?

USER: I need to book a flight ticket with direct flight, Can you please help me for booking from EWR to ORD?

ASSISTANT: Sure, I am here to help you. May I know when you want to travel?

USER: I would like to travel on 01/29 to 01/31.

ASSISTANT: Ok, please stand by I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to say no flights found with your details.

USER: Ok, no problem.

ASSISTANT: Thank you for availing us, have a nice day.

USER: Thanks for your information.