You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me in booking a flight ticket from IAH to HOU?

ASSISTANT: Sure, I am here to help you. May I know your trip dates?

USER: I would like to fly on Sept 28 and return on Sept 30.

ASSISTANT: Do you have any break in between journey?

USER: I need a direct airline.

ASSISTANT: Is there any other specifications for you?

USER: I would like to return in the afternoon time.

ASSISTANT: Can I have your good name?

USER: Myself Emily Evans.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for opting us.