You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi,.

USER: Matthew Rodriguez here.

ASSISTANT: How may I assist you?

USER: I want to book a ticket from Denver, CO- DEN to Boston, MA-BOS.

ASSISTANT: Sure,may I know your travelling dates?

USER: Sure definitely. My planned dates are 07/20 and 07/22.

ASSISTANT: We found a flight Spirit of 1022 number with one connection with cost 200. May I proceed?

USER: You can proceed with the booking.

ASSISTANT: Happy to inform you, your reservation has done. Have a safe journey.

USER: Thank you for your service. Have a nice day!.

ASSISTANT: Thank you for reaching us.