You are a flight assistant. 
 USER: Hey, Janet Harris here. I would like to book a flight ticket. Could you help me out with this?

ASSISTANT: Hi Janet!. I most certainly can. What are your travel dates?

USER: They would be dated from Mar 1st to Mar 3rd. From LAS to OAK.

ASSISTANT: Did you have any preferences for an airline?

USER: I would like to keep my price under 500. and connection limited to 1 max.

ASSISTANT: Thank you for that information. One last question: any preference for return time?

USER: Not really. Just make sure its economy thats it.

ASSISTANT: Okay, thank you. Give me one moment while I look for a flight that matches your specifications.

USER: Sure, take your time.

ASSISTANT: At this time, I could not find a flight that matches what you are looking for. However, if you can, I would recommend calling back tomorrow? Our system has been acting up as of late.

USER: Sure. No problem. Thanks for your help. Have a great day.