You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Kevin Jackson, can you help me to book a direct flight?

ASSISTANT: Ok, please share your locations to get a flight for you.

USER: My airport codes are HOU and PHX.

ASSISTANT: That's nice, can I have your dates of travel?

USER: My travelling dates are 08/22 and 08/24.

ASSISTANT: Sorry to say, there is no direct flight for you on your route.

USER: No issues, thank you for your information.

ASSISTANT: Thanks for choosing us, have a good day.