You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Frank Martin. I have a get together with my college friends. Please help me to book plane ticket.

ASSISTANT: Sure, we are here to help you. Can you provide your journey details.

USER: I want to start from Seattle, WA - SEA to Detroit, MI - DTW.

ASSISTANT: OK. Can you provide me your travelling dates?

USER: My depart date will be on 05/31 and have to return on 06/02.

ASSISTANT: OK. Please wait for few minutes, let me check the information.

USER: Sure.

ASSISTANT: Thank you, for waiting. We booked your ticket. Your flight number is 1019, airline is JetBlue.

USER: OK, you can proceed with this booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thank you, for reaching us.