You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please reserve me a flight ticket from DEN to SFO?

ASSISTANT: Sure, can you please share your journey dates?

USER: My trip dates are Mar 26 - Mar 28.

ASSISTANT: Are you looking for any preferred connections?

USER: I prefer a single connection.

ASSISTANT: Do you have any other specifications to be met?

USER: My depart time should be in the afternoon please make sure.

ASSISTANT: Can I have your name to proceed further?

USER: Scott Jackson here.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.