You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Ruth Hall, want to travel from LAX to ORD. Please help me in booking my ticket.

ASSISTANT: Sure, let me know your travelling dates.

USER: My travelling dates are from 10/27 to 10/29.

ASSISTANT: May I know your depart time and return time?

USER: My depart time will be in the evening.

ASSISTANT: Do you have any other specifications?

USER: I need a single connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.