You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I planned to meet my friend in LAS, can you please help me to book a flight ticket from LGA?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: I prefer to travel on Oct 26 and Oct 28.

ASSISTANT: Do you have any other preferences?

USER: I need a direct flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, no problem.

ASSISTANT: Can I know your name?

USER: I am Jessica Thomas.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.