You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Eric Green here.

ASSISTANT: How can I assist you?

USER: I am a scientist, I would like to do my research at Phoenix. Please help me in booking a ticket from DTW to PHX.

ASSISTANT: Ok, when are you planning your journey?

USER: I would like to plan my journey on 05/04 and return on 05/06.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: I found a flight in Southwest airlines with price 100. Shall I book the ticket for you?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1000.

USER: Thank you for your assistance.

ASSISTANT: Thank you for contacting us.