You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Elizabeth Young, can you help me to book a flight ticket from CN - CLT to TX - AUS?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Ok, please can I know the dates June 30 and July 2nd respectively.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Ok, not a problem. Thank you for assisting me.

ASSISTANT: Thank you for reaching us.