You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I need to travel SFO and ORD, can you please reserve flight ticket?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travelling dates are July,15 and July,17.

ASSISTANT: Do you have any specifications about flight connections?

USER: I prefer one connecting flight.

ASSISTANT: Do you have any specifications about class?

USER: No other specifications required.

ASSISTANT: Please mention your name.

USER: Myself Larry King.

ASSISTANT: There are no flights found under your preferable details.

USER: That's ok, I will choose any alternate source to reach my destination.

ASSISTANT: Thanks for reaching us, have a great day.

USER: Thank you for the information.