You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jason Parker.

ASSISTANT: How can I aid you today?

USER: I am planning to visit Charlotte, can you please book me a ticket from DCA to CLT?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please share your travelling dates?

USER: My planned dates of journey are from 06/06 to 06/08.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry Jason Parker, no flights found on your requested travelling dates.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for approaching us, have a nice day.