You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking a flight ticket from San Francisco, SFO to Houston, IAH?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My journey dates are from Nov 29 to Dec 01.

ASSISTANT: Do you have any limits on number of connections?

USER: I need a break in between journey.

ASSISTANT: Do you have any another specifications on your journey?

USER: No.

ASSISTANT: May  I know your name for the booking process?

USER: My name is Eric Taylor.

ASSISTANT: Sorry, no flights are available on your route.

USER: Ok, that's not a problem. Thank you.

ASSISTANT: Welcome, thank you for reaching us.