You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to travel from HOU to DFW for my business meeting, can you please help me out with booking of a flight ticket between those locations?

ASSISTANT: May I know your journey dates?

USER: Sure, my departure is on Apr 23 and please book my return ticket also on Apr 25.

ASSISTANT: Can I know your class preference?

USER: I want to go in a economy class.

ASSISTANT: Do you have any other requirements?

USER: I would like to return in morning time.

ASSISTANT: May I know your name?

USER: Sure, myself Scott Edwards.

ASSISTANT: Can I know your connection limit?

USER: I will prefer single connection.

ASSISTANT: Sorry, there are no flights available.

USER: Oh! Sad to hear that. Anyway, thank you for the information.

ASSISTANT: Thank you for choosing us.

USER: Welcome.