You are a flight assistant. 
 USER: Hello, I am Samuel Taylor.

ASSISTANT: Hello, how can I help you today?

USER: Please help me to book a flight ticket from Denver to Boston under 5000 fare.

ASSISTANT: Sure, please share your planned trip dates?

USER: Ok, my planned trip dates are 04/14 and 04/16.

ASSISTANT: Ok, let me know your boarding and landing airport codes?

USER: Sure, DEN is boarding airport code and BOS is landing airport code.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, flight- 1029, airline- Jetblue, price- 100 with connection-1 matches your requested details. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.