You are a flight assistant. 
 USER: Hi. Amanda Edwards here.

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

USER: Can you book a connecting flight to Oakland for my business trip?

ASSISTANT: Sure, kindly mention your travel dates.

USER: My travel dates are from Apr 10 to Apr 12.

ASSISTANT: May I know your airport codes?

USER: Yes, my airport codes are from LAX to OAK.

ASSISTANT: How much can you afford for this journey?

USER: I am looking for a flight ticket with price below 500.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform, no flights found with your requirement.

USER: Ok, that is not a problem. Thank you.

ASSISTANT: Thanks for reaching us.