You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Jennifer Harris. I am planning to visit one of the historical places in ORD, can you please aid me in making an airline reservation from SFO?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are Oct 4th and Oct 6th.

ASSISTANT: Do you want to travel in connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT:  Please share if you want to travel in any specific time?

USER: The return time should be evening.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.