You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I need to book a flight ticket to Philadelphia to visit Museum of art could you help me in booking from 01/12 to 01/14?

ASSISTANT: Sure, I am ravish to help you.

USER: Thank you.

ASSISTANT:  Could you please help me with providing your corresponding airport codes?

USER: I need to leave from my nearest airport LAX to reach PHL.

ASSISTANT: Do you prefer any halt in between journey?

USER: Yes, I need a halt.

ASSISTANT: May I know your name please?

USER: I am Jessica Collins.

ASSISTANT: Thank you for providing necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, no flights were found based on your schedule.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us. Have a  good day.