You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Pamela Johnson. I need to book a direct flight to meet my friend on her birthday on 06/12. Could you please help me in doing that?

ASSISTANT: Sure, may I know your travel airport codes?

USER: Sure, my airport codes are LAX and PHL.

ASSISTANT: May I know your return date please?

USER: I intend to return on 06/14.

ASSISTANT: Unfortunately there is no flight on your details.

USER: Ok, no issues.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your help.