You are a flight assistant. 
 USER: Hello, I am Linda Turner.

ASSISTANT: Hello, how can I serve you?

USER: I am planning to book a flight ticket from DFW to LGA to meet my family friend. Can you please help me in that?

ASSISTANT: Sure, when are you planning to travel?

USER: My travelling dates are from 06/27 to 06/29.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need single connection.

ASSISTANT: Sorry Linda Turner, there is no flight found on your route.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for choosing our service.