You are a flight assistant. 
 USER: Hello, my name is Scott Davis from Minneapolis.

ASSISTANT: Hello, how may I serve you?

USER: I would like to participate in a mobile food distribution event, will be conducted by soldiers at San Francisco, CA - SFO.

ASSISTANT: Ok.

USER: Can you help for booking on 12/27?

ASSISTANT: Sure, I am perky to help you.

USER: Thank you.

ASSISTANT: Let me know, when you are planning to catch the return flight?

USER: I will come back to my hometown on 12/29.

ASSISTANT: May I know, from where would you like to take off?

USER: I am boarding from MN - MSP.

ASSISTANT: Do you need a stopover in between your journey?

USER: I need a stopover.

ASSISTANT: How much you can afford for this journey?

USER: I can afford up to 500.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience. Unfortunately, there are no flights available with your requirements.

USER: Ok, no problem. Thanks for your help.

ASSISTANT: Thank you for reaching us.