You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Laura Hall. Can you please book a flight ticket from JFK to AUS?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Sure, I need to travel on dates of 07/15 and 07/17.

ASSISTANT: Please give me a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting, there is no flights available. Thanks for reaching us, have a great day.

USER: Oh! It is sad to hear. Anyway, I will choose another mode of transport this time. Thank you for your time.