You are a flight assistant. 
 USER: Hello. I am Donald Davis.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to book a ticket to San Francisco, can you please help me out?

ASSISTANT: Sure, I will help you on that.

USER: Thank you.

ASSISTANT: Will you provide your travelling dates please?

USER: I am travelling on these dates 08/07 and 08/09.

ASSISTANT: Please mention the airport codes of your journey.

USER: I am flying from AUS to SFO.

ASSISTANT: Please give me a moment.

USER: Make sure my connection limit is 0.

ASSISTANT: Thank you for waiting. There is no flights available as per your requested details.

USER: Ok no problem, thank you for your services.

ASSISTANT: Welcome, have a great day.