You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am a scientist and I need a flight ticket from LAX to ORD to attend a meeting, can you please help me with booking?

ASSISTANT: Can you help me with your travelling dates?

USER: Thank you and I want to take off on Jan 12 and I will arrive back on Jan 14.

ASSISTANT: May I know your good name to proceed further?

USER: Sure, my name is Eric Thomas.

ASSISTANT: May I know your connection limit?

USER: I need a single drop off in my journey.

ASSISTANT: Do you have any class preference?

USER: I don't have any class preference.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: Sorry, there are no flights found with your specified dates to travel.

USER: Sad to hear that one, anyway thank you for your help.

ASSISTANT: Thank you for choosing us.