You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: I am Anthony Mitchell. Please book me a ticket from SFO to HOU to meet my family.

ASSISTANT: Your travelling dates please?

USER: I have planned to travel on Sept 15th and return on Sept 17th.

ASSISTANT: Do you have any specifications?

USER: I would like to return at evening time.

ASSISTANT: Do you need connection flight?

USER: Yes, I prefer connecting flight.

ASSISTANT: I am sorry no flights found on your route.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.