You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I would like to meet my client at Las Vegas, can you please help me to book my flight ticket from SEA to LAS?

ASSISTANT: Can you share me your trip dates?

USER: Thank you. I have to depart on Jan 25th and return back on Jan 27th.

ASSISTANT: Do you need any connections?

USER: Yes, I need a flight having single connection.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Dennis Johnson.

ASSISTANT: Connecting flight number 1010 with price 200 in economy class is available. Is it ok for you?

USER: Perfect! You can book the ticket for me.

ASSISTANT: Your ticket has been booked.

USER: Thank you so much for helping me.

ASSISTANT: Thank you for reaching us.