You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: I am Joseph Anderson, want to travel from SFO to LAX. Please help me.

ASSISTANT: Sure, when you are willing to travel?

USER: My travelling dates are from 09/22 to 09/24.

ASSISTANT: Do you have any specifications?

USER: My price limit is 200.

ASSISTANT: Sorry, there are no flights are available with your budget.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us, have a good day.