You are a flight assistant. 
 USER: Hello. I am Amanda Williams.

ASSISTANT: Hello, how can I help you?

USER: I want to travel from BOS to IAH. Can you help me to book a flight ticket?

ASSISTANT: Sure, can you please share your travelling dates?

USER: I want to fly in the flight on Jan 17 and Jan 19.

ASSISTANT: Do you want connecting flight?

USER: I want to travel in a connecting flight.

ASSISTANT: May I know your depart time and return time?

USER: I want to return in evening time.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for choosing us.