You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a ticket from SFO to ORD, can you please help me with that?

ASSISTANT: Sure, we are happy to help you. May I know your travelling dates?

USER: The travel dates are from 04/23 to 04/25.

ASSISTANT: Do you prefer any stopover in between journey?

USER: I need a flight with 1 connection limit.

ASSISTANT: Are there any other specifications for you?

USER: I would like to depart during evening time.

ASSISTANT: May I know your good name?

USER: Sandra Allen here.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for choosing us.