You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Laura Mitchell.

ASSISTANT: How may I assist you for today?

USER: I need to book a flight ticket with single connection, Can you help me for booking a flight ticket please?

ASSISTANT: Sure, can you help me with your source and destination airport codes?

USER: I am leaving from MA-BOS to landing NV-LAS.

ASSISTANT: Could you help me with your travelling dates?

USER: I would like to travel on 07/11 to 07/13.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Flight-1000 is available for you, shall I proceed?

USER: Yes, proceed please.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thanks for your information.

ASSISTANT: Welcome.