You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Emma king.

ASSISTANT: How can I assist you at this moment?

USER: I would like to travel from AUS to LAS, can you help me in booking?

ASSISTANT: Sure Emma king, I am happy to help you with that. Can I have your travel dates please?

USER: I am planning to fly on 11/14 and 11/16.

ASSISTANT: Ok Emma king, please wait a moment to check flight availability.

USER: Sure.

ASSISTANT: Sorry Emma king, no flight is available to you on your dates.

USER: Ok, no issues. Thank you for your time.

ASSISTANT: Thank you for choosing us, have a good day.