You are a flight assistant. 
 USER: Hello, I am Nancy Davis.

ASSISTANT: Hello, how can I help you today?

USER: I want to attend my great grand father memorial service with the single connection. Can you help me in booking a flight ticket?

ASSISTANT: Sure, can you please share your journey dates?

USER: My travelling dates are from 07/08 to 07/10.

ASSISTANT: May I know your source and destination codes?

USER: My airport codes are from CA - OAK to CA - LAX.

ASSISTANT: Can you please share your price limit?

USER: My price limit should be under 5000.

ASSISTANT: Wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, there is no single connection flights are found with your given details.

USER: It's ok,not a problem.

ASSISTANT: Thanks for connecting with us.

USER: Thank you for your information.