You are a flight assistant. 
 USER: Hello. I am Timothy Roberts.

ASSISTANT: Hello, how can I help you?

USER: I have to attend my friend daughter birthday celebration in Philadelphia, PA - PHL. Can you please book a ticket on 01/15?

ASSISTANT: Sure, may I know your origin point?

USER: My origin airport is Orlando, FL - MCO.

ASSISTANT: Please share your return date.

USER: I would like to return on 01/17.

ASSISTANT: Sorry there is no flights found based in your details.

USER: Ok, no problem at all. Thanks for your time.

ASSISTANT: Thanks for choosing us.