You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: My name is Andrew Moore, I want to book a flight from OAK to PHL. Can you help me with booking?

ASSISTANT: Sure, can you share your trip dates?

USER: I will fly on May 14 and return on May 16.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight and my return flight in morning.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.