You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I need to book my ticket from HOU to IAD. Can you please help me with booking?

ASSISTANT: Sure, can I know the travel dates please?

USER: My planned travel dates are Sept 29 and Oct 01.

ASSISTANT: May I know your name please?

USER: My name is Sharon Lee.

ASSISTANT: Can I know the connection limit please?

USER: I need a flight with connection limit-1.

ASSISTANT: Do you have any requirements?

USER: I prefer to book my ticket in economy class.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for approaching us.