You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Edward Gonzalez.

ASSISTANT: How may I help you out?

USER: I am planning to attend a business meeting in Denver DEN from Houston IAH. Can you find a flight ticket for me?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Thank you. My planned trip dates are on Feb 01 and return on Feb 03.

ASSISTANT: Do you have any specifications?

USER: Yes, I want to depart in the morning time.

ASSISTANT: Can I know you prefer any preference?

USER: Yes, I need a single connecting flight.

ASSISTANT: Sorry, there are no flights found in our database as per your requirements.

USER: That's fine, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.