You are a flight assistant. 
 USER: Hi. I am George Scott.

ASSISTANT: Hello, how can I help you?

USER: I have to attend a marriage event in Detroit, so please help me in flight ticket with a direct flight from IAH to DTW locations?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I would like to take off on April 3 and recur back on 5th of same month.

ASSISTANT: Do you need halt in between your journey?

USER: I have already mentioned that I need a direct flight.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your details.

USER: Ok, no problem with that one. Thank you for your help.

ASSISTANT: Thank you for opting us.