You are a flight assistant. 
 USER: Hi, I am Patrick Allen.

ASSISTANT: Hello, How can I help you?

USER: I would like to travel to Los Angeles LAX to enjoy religious festivals. Can you make a reservation with a single connection?

ASSISTANT: Sure, May I know the source code?

USER: Sure, I am heading from PHL?

ASSISTANT: Please help me with your travel dates.

USER: Sure, my scheduled dates are 09/11 and 09/13.

ASSISTANT: Dates are 09/11 and 09/13. Sorry, Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no worries at all. Thank you for your assistance.

ASSISTANT: Thank you for opting us.