You are a flight assistant. 
 USER: Timothy Jackson here.

ASSISTANT: Hello, how may I help you today?

USER: I would like to book a ticket to Austin for meeting my grand parents, so I would like to book a ticket from CLT to AUS.

ASSISTANT: Sure, may I know your dates of travelling?

USER: The travelling dates are from 08/22 to 08/24.

ASSISTANT: Sorry Jackson, no flight's found on your dates.

USER: That's ok, no issues.

ASSISTANT: Thank you for contacting us.

USER: Most welcome.