You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Dennis Jackson.

ASSISTANT: How can I assist you?

USER: I need to book a flight ticket from PHX to DFW, Can you please help me for booking?

ASSISTANT: Sure, please provide your fare limit?

USER: I can pay up to 1000.

ASSISTANT: When you have planned to travel?

USER: I would like to travel on 01/29 to 01/31.

ASSISTANT: There is a flight from an AA airline of fare 100 and flight number 1028.

USER: Ok, proceed for booking.

ASSISTANT: Your flight reservation is done.

USER: Thanks for your information.

ASSISTANT: Thanks for approaching us.