You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you the best today?

USER: Can you please help me in booking a flight ticket from LGA to IAH?

ASSISTANT: Sure, I can help you. Can I know your dates of travelling?

USER: Thank you, my travel dates are from June 24 to June 26.

ASSISTANT: Is there any connection restriction?

USER: I prefer a direct flight.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: For documentation purpose, can I have your name please?

USER: My name is Daniel Johnson.

ASSISTANT: Sorry to say this, there are no flights found on your travel dates for your journey.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thanks for reaching us.