You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Robinson.

ASSISTANT: Richard Robinson, how may I assist you now?

USER: On 12/10 please book a flight ticket to Chicago, ORD to visit my uncle's house.

ASSISTANT: Ok.

USER: Can you help me in booking a flight ticket?

ASSISTANT: Let me know your other code details.

USER: My origin is New york, EWR.

ASSISTANT: What is your return date?

USER: My return date is on 12/12.

ASSISTANT: Thanks for your time. We found that there is no flight that matches with your information.

USER: Ok, No problem.

ASSISTANT: Thank you for availing us.

USER: Thank you.

ASSISTANT: Have a great day.