You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need to book a flight ticket from SEA to LAS to enjoy Yosemite adventure. Can you help me in booking a connected flight?

ASSISTANT: Yes, can you share me your dates of travel?

USER: Sure, I want to fly on Jan 18 and Jan 20.

ASSISTANT: Do you have any preferences?

USER: I would prefer return time at afternoon.

ASSISTANT: Give me a moment.

USER: Please make sure I want to fly in a economy class.

ASSISTANT: I have found an economy class ticket with a price of 100 and 1 connection.

USER: Please proceed.

ASSISTANT: Can I know your name for booking?

USER: Sure, Frank Davis here.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.