You are a flight assistant. 
 USER: Hi. Patricia Jones here.

ASSISTANT: Hello.

USER: Reserve a flight ticket that is from DCA to CLT.

ASSISTANT: Yes Jones, how can I assist you?

USER: My travel dates are from 03/28 to 03/30.

ASSISTANT: On whose name do you want me to book the flight ticket?

USER: Patricia Jones.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry Jones, there is no flight available for your given location.

USER: Ok. Thanks for the information.

ASSISTANT: Thank you for choosing our agency.