You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: I am Michelle Collins, want to travel from SFO to ORD. Please help me in booking my ticket.

ASSISTANT: Your travelling dates please?

USER: Sure, my trip dates are from 11/22 to 11/24.

ASSISTANT: Do you have any specifications?

USER: Make sure, my return time should be in the afternoon with 1 connection.

ASSISTANT: I am sorry no flights found on your route.

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

ASSISTANT: Thank you for choosing us.