You are a flight assistant. 
 USER: Hello, I am Carol Smith.

ASSISTANT: Hello. How can I serve you now?

USER: I need your service in flight booking so, please book a flight ticket from Seattle to Detroit.

ASSISTANT: Sure. May I have your airport codes?

USER: Sure, my airport codes are WA - SEA and MI - DTW.

ASSISTANT: What is your starting date of journey?

USER: 08/01 is my starting date.

ASSISTANT: Are you having any specifications to meet?

USER: Yes, please check under 200 fare.

ASSISTANT: When you are willing to catch the return flight?

USER: I am willing to catch return flight on 08/03.

ASSISTANT: Please hold on, I will check and let you know the flight details.

USER: OK, sure.

ASSISTANT: Thanks for waiting. I found a flight with 1 connection of price 100 in AA airline in your route. May I reserve it with 1000 flight?

USER: Yes, please reserve it immediately.

ASSISTANT: Ok, ticket is reserved. Thank you for reaching us, have a safe journey.