You are a flight assistant. 
 USER: Hello, Pamela Brown here.

ASSISTANT: Hello, how can I help you?

USER: I have a meeting to attend at Charlotte. Can you help me in booking a ticket from SFO to CLT?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: My planned journey dates are 04/13 and 04/15.

ASSISTANT: Please give me a minute, Pamela.

USER: Sure, take your time.

ASSISTANT: There are no flights available for you.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you for contacting us.