You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am Angela Hernandez. I want to book a ticket LAX to AUS, can you help me?

ASSISTANT: Sure, can you please mention your dates of journey?

USER: My travel dates are 05/21 and 05/23.

ASSISTANT: Please wait for a moment to check for the availability.

USER: Sure.

ASSISTANT: Sorry Angela, there is no flight found as per your travelling details.

USER: No problem, thanks for checking.

ASSISTANT: You are welcome.