You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Rebecca Miller from Philadelphia. Can you please book a direct flight to Detroit?

ASSISTANT: Yes, I can help you with that. Do you have any idea on the airport codes? If yes, please provide me the codes.

USER: I want to fly from PHL and destination airport is DTW.

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I want to take off on 08/02 and please confirm my return ticket also on 08/04.

ASSISTANT: Thank you for providing your travel details. I will put the conversation on hold to check the best flights available in your route.

USER: Ok.

ASSISTANT: Sorry to say, I did not find any flights on your route.

USER: Oh! It's ok no problem.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for your information.