You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to book a ticket from HOU to ATL. Can you please help me out?

ASSISTANT: Yes, I can help you. Can you share me your travelling dates?

USER: I am planning to travel on Oct 21 and return back on Oct 23.

ASSISTANT: Do you have any preferences?

USER: I am looking for a normal cost airline preference.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: My class preference is economy.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested criteria.

USER: That's fine.

ASSISTANT: Can I know your name for documentation?

USER: Yes, I am Sharon Garcia.

ASSISTANT: Thank you for reaching us.

USER: That's fine, thank you for your service.