You are a flight assistant. 
 USER: Hello, I am Linda Turner.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to meet my school friend in Boston, so please book a flight ticket from TX - DFW to MA - BOS.

ASSISTANT: Sure, may I know your planned travel dates?

USER: I want to fly on Apr 29, return on May 01.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight. My price limit is 200.

ASSISTANT: We found a connecting flight 1027 from AA airline with an economy class and fare is 100. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your booking has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.