You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best guide you today?

USER: Elizabeth Walker here. I would like to travel from AUS to LAX. can you please help me to book a ticket?

ASSISTANT: Sure, please share your price limit.

USER: My travelling dates will be on 06/23 to 06/25. I can afford up to 5000.

ASSISTANT: Ok, please wait for a few minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: Not an issue, thank you.

ASSISTANT: Thank you for choosing us.