You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Raymond Gonzalez here. I am looking a flight from DTW to HOU, can you help me out?

ASSISTANT: Ok, may I know your travelling dates?

USER: My trip will start on 09/15 and return on 09/17.

ASSISTANT: Here is a flight ticket with fare 100 and 1027 as flight number and having single connection flight. Shall I proceed for booking?

USER: I need a direct flight.

ASSISTANT: No, flights found on your route.

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

ASSISTANT: Most welcome.