You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from ORD to SFO to attend my friend engagement. Can you help me in booking a connected flight?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my journey dates are 13 Jul and 15 Jul.

ASSISTANT: Do you have any other specifications to be met?

USER: I would prefer return time at afternoon. And I am looking for a normal-cost airline.

ASSISTANT: Are you looking for any class preferences?

USER: No.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Can you please share your good name?

USER: Sure, Paul Young here.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for choosing us.