You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am searching for a flight ticket booking service, which can search a flight ticket for me with 5000 price.

ASSISTANT: We provide best quality service to our customers. May I know your itinerary dates?

USER: Ok, thank you for providing me your best service. I want to go for my trip on 01/06 and my return date is 01/08.Please search a better flight ticket for me.

ASSISTANT: Please share your source and destination airport codes.

USER: I want to visit an historical place  which is named with Okaland Cementery and I have to return from the same place.

ASSISTANT: It's a nice place to visit, may I know your airport codes?

USER: Ok, It is a round trip and my source and destination code is ATL.

ASSISTANT: Please give me a minute to check for a best flight for you.

USER: Ok, take your own time.

ASSISTANT: May I know your name for further proceedings?

USER: Ok, myself John hall.Please book my ticket on this if any you found.

ASSISTANT: Sorry John, we could not find a flight on your planned dates.

USER: Ok, fine not an issue.I will find any other way to complete my trip.

ASSISTANT: Would you like to travel on some other day?

USER: No, if am having such a plan I will consult you.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your help.

ASSISTANT: You are welcome.