You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: My name is Justin Taylor.

ASSISTANT: Ok.

USER: I have an event to attend at Houston. Can you help me in booking a ticket from LGA to IAH?

ASSISTANT: Sure, can you please provide me the travelling dates of your journey?

USER: The journey dates are 10/04 and 10/06.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry Justin, there are no flights found on your requested dates.

USER: That's fine, thank you for the information.

ASSISTANT: Thank you for approaching us, have a nice day.