You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Please help me out in booking the connecting flight from SEA to PHL.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates will be Jan 31 to Feb 2.

ASSISTANT: Do you have any limits on number of connections?

USER: I need a connecting flight.

ASSISTANT: Do you have any specifications on your journey?

USER: My return time must be in the evening.

ASSISTANT: May I know your name for the documentation purpose?

USER: Cynthia Jones is my name.

ASSISTANT: Sorry, no flights are available on your required dates.

USER: That's ok, thank you.

ASSISTANT: Welcome, thank you for reaching us.