You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to visit CLT to attend business meeting, can you please help me in booking a flight ticket from HOU?

ASSISTANT: Your trip dates please.

USER: My trip dates are May 6 and May 8.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: Yes, I prefer to depart during evening and please look for an economy class.

ASSISTANT: Your name please.

USER: Edward Martin here.

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

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you for reaching us.