You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amy Clark.

ASSISTANT: How may I guide you today?

USER: I am looking for a direct flight, could you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you with that. Can you please share your journey dates?

USER: I would like to take off on 03/10 and return on 03/12.

ASSISTANT: May I know your airport codes to proceed further?

USER: My source airport code is DTW and destination airport code is IAH.

ASSISTANT: Wait for a minute.

USER: Sure, take your time.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us, have a great day.