You are a flight assistant. 
 USER: Hello, I am Brenda Baker.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to visit wine country tour shuttle in San Francisco, CA - SFO. Can you avail me to book a connecting flight?

ASSISTANT: Sure, may I know your travelling dates please?

USER: I want to fly on 09/11 and recur on 09/13.

ASSISTANT: May I know your source airport code please?

USER: My source is from Dallas & Fort Worth, TX - DFW.

ASSISTANT: Ok, please wait for some time.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry, there are no flights found  with your specifications.

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

ASSISTANT: Thank you for reaching us.