You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Stephanie Carter. I want to meet my grandparents in Seattle, WA-SEA. Can you please book a flight ticket for me?

ASSISTANT: Please let me know your travelling dates.

USER: My travelling dates are 09/09 and 09/11.

ASSISTANT: Can I know your boarding airport code?

USER: My boarding airport code is Denver, CO-DEN.

ASSISTANT: Connecting flight can be booked with airline AA for price 300. Shall I book a ticket?

USER: Please proceed.

ASSISTANT: Ticket is booked having flight number 1018.

USER: Thank you for your service.

ASSISTANT: Thanks.