You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, could you please share your journey dates?

USER: The travel dates are from 05/10 to 05/12.

ASSISTANT: Do you have any preferences?

USER: I need a flight with 1 connection limit. I would like to return during afternoon time.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: Debra Davis here.

ASSISTANT: Sorry, no flights are available as per your requirements.

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

ASSISTANT: Thank you for opting us.