You are a flight assistant. 
 USER: Hello, I am Nancy Collins.

ASSISTANT: Hello,. How can I oblige you today?

USER: I want to attend my Colleague's ring ceremony, can you book a ticket on dates 07/09 and 07/11?

ASSISTANT: Sure, we are mirthful to help you. Kindly, share your airport locations.

USER: I want to fly from Austin, TX - AUS and destination is to Charlotte, NC - CLT. My price limit is up to 200 only.

ASSISTANT: Please, wait for a moment I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flight found to your destination.

USER: It's alright.

ASSISTANT: Thank you  for reaching us.

USER: Thank you for your information.