You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how can I help you?

USER: There is Baseball match in HOU, so I want to book a ticket from my home town CLT.

ASSISTANT: That's good, on which dates you need booking?

USER: I am planning to travel this weekend on 06/21 and return on 06/23.

ASSISTANT: Ok, may I know your name please?

USER: I am Gery Hill. Sorry my name is Gary Hill.

ASSISTANT: Ok Gary, no flights found as per your planned travelling dates.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for choosing us.