You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Please book me a flight ticket from LGA to IAD.

ASSISTANT: Yes, I will definitely try my best to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: I will start on May 7th and return on May 9th.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Let me know about your other preferences.

USER: I am fine with above essentials.

ASSISTANT: Can you please share me your name to proceed further?

USER: I am Anthony Mitchell.

ASSISTANT: Sorry, we have not found any flights running on your desired routes.

USER: That's alright, thanks for your assistance.

ASSISTANT: Thank you for reaching us.