You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Taylor.

ASSISTANT: How can I help you?

USER: I am looking for a flight from HOU to JFK, can you please help me in booking?

ASSISTANT: Please provide your travel dates.

USER: I am planning to start my journey on Oct 04 and return back on Oct 06.

ASSISTANT: Do you have any preferences?

USER: My return time is evening.

ASSISTANT: Do you have any connection limit.

USER: Yes, I need a connecting flight.

ASSISTANT: Sorry, I did not find any flights for you.

USER: That's ok, thank you for checking.

ASSISTANT:   Thank you for reaching us.