You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Melissa Collins.

ASSISTANT: How may I aid you?

USER: I have a land settlement work at Dallas. Can you help me in booking a ticket?

ASSISTANT: May I know your airport codes please?

USER: The airport codes are DEN and DFW.

ASSISTANT: Please share your travelling dates.

USER: I am planning my journey on dates 07/30 and 08/01.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, I found a flight for you in Frontier airlines with price 100. Can I proceed?

USER: Sure, you may book the ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1022.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.