You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Dorothy Baker need to book a ticket to LGA from IAH, can you please help me in booking a direct flight?

ASSISTANT: May I know your travel dates?

USER: I would like start on 01/03 and need to return on 01/05.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1014. Shall I proceed with this flight?

USER: Do not proceed. I need a direct flight.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Ok, no issues. Thank you.

ASSISTANT: Most welcome.