You are a flight assistant. 
 USER: Hi, I am Joseph Brown.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to spend my holidays in San Francisco, CA - SFO. To visit the San Francisco Jazz centre. Can you help me to book a single halt flight?

ASSISTANT: Sure, Can you share me your trip dates please?

USER: I want to start on 03/27 and return on 03/29.

ASSISTANT: May I know your source point?

USER: My source is from LAS.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Unfortunately there is no flights found on your details.

USER: Ok, no issues. Thanks for your support.

ASSISTANT: Thanks for choosing us.