You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I would like to fly from LAX to DFW to discuss about my project with my manager. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, please share your class preference.

USER: I comfortable with any class.

ASSISTANT: May I know your planned dates of travel?

USER: Sure, I want to depart on June 23 and return on June 25.

ASSISTANT: Are you looking for any specific time to depart and return?

USER: Sure, I want to return in the afternoon.

ASSISTANT: May I know your connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you have any other preference?

USER: No, I do not have any other preference.

ASSISTANT: May I know your name please?

USER: I am Michael Adams.

ASSISTANT: Sorry to inform you that we don't have any flight available which meets all your journey needs.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for contacting us, we hope to serve you better next time.