You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I'm Scott Green. I need a reservation to attend my nephew's ceremony. Can you please book a ticket with one connection?

ASSISTANT: Sure, I am here to help you. Please provide your journey details?

USER: I would like to depart on 03/22 and return on 03/24.

ASSISTANT: Please share me your airport codes?

USER: I have to start from Minneapolis & St.Paul, MN - MSP and return from CA - SFO. Price limit is 5000.

ASSISTANT: Please hold on, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, but there are no flights a per your requirement.

USER: No problem. Thanks for your kind information.

ASSISTANT: Thank you for choosing us, have a great day.