You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you help me in booking from DEN to CLT, as there is a business meeting to attend?

ASSISTANT: Sure, can I know your travelling dates?

USER: My trip dates are Apr 25 to Apr 27.

ASSISTANT: On which name should I reserve the flight ticket?

USER: I am Timothy Johnson.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a stopover flight.

ASSISTANT: Do you have any other specifications?

USER: I prefer a normal-cost airline.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us.