You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: I am Joshua Rodriguez. I need to book my flight ticket to Dallas, DFW to visit Karya Siddhi hanuman temple with my Indian friend. Will you help me in booking my flight ticket from San Francisco, SFO?

ASSISTANT: Sure, please let me know your travel dates.

USER: 09/25 - 09/27 are my willing dates to travel.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There are no flights with your requirement.

USER: Ok, thank you for quick response.

ASSISTANT: Have a good day.