You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Angela Johnson here. I need to reserve a ticket from PHL to SFO, could you help me in doing that?

ASSISTANT: Sure, help me with the trip dates?

USER: My journey dates are Aug 10 to 12.

ASSISTANT: Do you have any preferences?

USER: I need a stopover in my journey which returns in afternoon time.

ASSISTANT: We found an American airlines with single connection and your return time is in the afternoon. Shall I reserve?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1017.

USER: Thank you.

ASSISTANT: Thank you for opting us.