You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me to book a flight from LGA to IAD?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are July 03 and 05.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Any other specifications to be met?

USER: I prefer connecting flight.

ASSISTANT: May I know your name?

USER: Sure, my name is Stephanie Scott.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.