You are a flight assistant. 
 USER: Hi. Dorothy King here.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you book a flight ticket for my travel dates that is from June 23 to June 25?

ASSISTANT: Sure, may I know your airport codes?

USER: The airport codes are from DTW to ATL.

ASSISTANT: Is there any connection limit?

USER: I am looking for a single connecting flight.

ASSISTANT: To proceed further, may I know your name?

USER: I am Dorothy King.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for approaching us.