You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Donald Hall. I got an interview call from France Tribune at San Francisco SFO, So I need to attend an interview. Could you please help me in booking a ticket with fare of 1000?

ASSISTANT: Sure, we are gleeful to help you. Can you please provide your take off airport code?

USER: Sure, My take off airport code is Denver DEN.

ASSISTANT: Kindly assign your preferred dates of travelling?

USER: My travelling dates are 01/22 and return on 01/24.

ASSISTANT: Do you require any stopovers in your journey?

USER: Yes, I need a stopover in between the journey.

ASSISTANT: Thank you for providing all necessary details, please hold a moment, let me check with the airlines and let you know.

USER: Sure.

ASSISTANT: Thank you for being on hold, sorry to inform you that unfortunately there is no flights available by the given details.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for contacting us.