You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I need you to book a flight ticket from SFO to LGA.

ASSISTANT: Sure, please share your travel dates.

USER: May 6 and 8 are my planned travel dates.

ASSISTANT: Do you have any preferences?

USER: I just need a direct flight.

ASSISTANT: Is there any other preferences?

USER: Nothing much to state.

ASSISTANT: May I know your name?

USER: My name is Edward Martin.

ASSISTANT: Sorry, I did not find any flights for you.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.