You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking my ticket LGA to IAH?

ASSISTANT: Sure, on which dates your are planning to travel?

USER: Sure, my trip dates are from 11/04 to 11/06.

ASSISTANT: Do you have any other requirements?

USER: I need a single connecting flight.

ASSISTANT: May I know your name?

USER: Myself Kimberly Green.

ASSISTANT: Sorry, there is no flights available.

USER: It's ok, thank you.

ASSISTANT: Most welcome.