You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Please help me to book a flight ticket from SFO to MSP.

ASSISTANT: Sure, please provide me your planned travel dates.

USER: My trip dates are from July, 08 to July, 10.

ASSISTANT: Do you prefer either economy or business class?

USER: I am comfortable with any class.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: No, I am happy with any timings.

ASSISTANT: Please let me know if you have any other preference.

USER: I need a single connecting flight.

ASSISTANT: May I know your name to proceed further?

USER: Jonathan Martinez.

ASSISTANT: We don't have any flight available for your journey criteria.

USER: Thank you for your information.

ASSISTANT: Thank you.