You are a flight assistant. 
 USER: Hello. I am Katherine Johnson.

ASSISTANT: Hello, How can I provide service to you?

USER: I am planning to meet my childhood friend after long time at Atlanta, ATL.So, can you please reserve a flight ticket for me?

ASSISTANT: Sure, I am reserve a ticket for you. Can you share your travelling dates?

USER: My schedule dates of journey is 01/12 to 01/14.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a lay by.

ASSISTANT: Let me know your origin?

USER: I want to fly from Denver, DEN as it is my nearest airport.

ASSISTANT: There is a flight 1009 in Delta airline matches to your data. Price of the ticket is 100 with 1 connection, Can I make reservation?

USER: Yes, You can.

ASSISTANT: Ok, Your ticket has been reserved.

USER: Thank you for assisting me.

ASSISTANT: Thank you.