You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket with the name Ashley Collins, please help me with a connecting flight.

ASSISTANT: Sure, I am glad to help you. May I know your journey codes to proceed further?

USER: My source code is DEN and Dest code is ATL.

ASSISTANT: Ok, help me with your journey dates.

USER: My travelling dates are from 08/03 to 08/05.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thanks for your time, sorry to say no flights found with your details.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.