You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Paul Wilson.

ASSISTANT: Yes, Paul.

USER: I want to meet my cousin's.I would like to book a ticket from HOU to LGA.

ASSISTANT: Sure, can you provide me your travelling dates?

USER: My trip dates are from 10/25 to 10/27.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say you that there is no flights on your requirement. Do you have planned any other dates for travelling?

USER: No, thank you for your help.

ASSISTANT: That's ok. Thank you for reaching us.