You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to attend business meeting at PHX, can you please help me with booking a flight ticket from ORD?

ASSISTANT: Can you share your trip dates?

USER: Sure, I would like to depart on Sept 30 and return on Oct 2.

ASSISTANT: Do you need any connections?

USER: I need a flight with 1 connection.

ASSISTANT: Any other preferences?

USER: I prefer economy class.

ASSISTANT: May I know your name?

USER: My name is Samantha Roberts.

ASSISTANT: Sorry to say that, there are no flights found with your details.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.