You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Thompson.

ASSISTANT: How may I aid you?

USER: I want to go for long trip from Dallas to Detroit, can you please book me a ticket?

ASSISTANT: Ok, I will help you.

USER: Thank you.

ASSISTANT: Will you please mention the journey dates?

USER: I have planned to travel on 11/26 and 11/28.

ASSISTANT: Where are you starting from and landing at? Please specify the airport codes.

USER: I would like to fly from DFW to DTW.

ASSISTANT: We found a AA airline, its ticket price is 200, flight number 1012.

USER: Ok, please book this ticket.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you.