You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I do for you?

USER: Being a wild life photographer I need to visit Ceder hill state park to explore new things about opossums. Can you help me to book a flight ticket?

ASSISTANT: Sure, may I know the name on which you would like to book the ticket?

USER: My name is Lisa Young.

ASSISTANT: Do you need any stopover?

USER: I don't have much time to travel so make sure it must be a direct flight.

ASSISTANT: When do you plan to travel on?

USER: I need to reach Dallas on 08/12.

ASSISTANT: How much should the fare be?

USER: I can pay up-to 5000.

ASSISTANT: May I know your planned return date?

USER: I will return with in two days that is 08/14.

ASSISTANT: To proceed further, please provide your journey airport codes.

USER: My plan is to start from Chicago, IL-ORD to reach Dallas, TX-DFW.

ASSISTANT: Thank you for providing your essential details. Please wait a while, I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for your time. We don't have a direct flight matching with your specifications.

USER: Ok, no problem. I'll choose any other alternative. Thanks for the information.

ASSISTANT: Thank you for being with us and have nice day.