You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is Ruth Robinson. I want to book a flight ticket from DFW to LGA to meet my friend. Can you help me for booking?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are from 06/19 till 06/21.

ASSISTANT: Please wait a moment.

USER: Make sure that my connection limit should be 1.

ASSISTANT: Sorry, no flights are available on your route.

USER: Thank you for checking.

ASSISTANT: Welcome, have a nice day.