You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to celebrate my birthday at my home town at LAX, can you please check the availability of flight from LAS?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, I am going on 04/24 and intend to back on 04/26.

ASSISTANT: Ok. Please mention your price limit?

USER: I have a price limit of 200.

ASSISTANT: Sorry, no reservation found on your requested dates.

USER: OK, no issues.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your time.