You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to travel from PHX to DFW. Can you help me to book a flight ticket?

ASSISTANT: Sure, can you share me your trip dates?

USER: I want to travel in the flight on Sept 07 and Sept 09.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a direct flight.

ASSISTANT: Can I know your good name?

USER: Justin Williams.

ASSISTANT: Sorry, no flights are found on your travel dates.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for reaching us.