You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Katherine Campbell here.

ASSISTANT: How may I aid you?

USER: My airport codes for boarding the flight are ATL to SFO. Can you reserve a flight ticket?

ASSISTANT: Sure, I am here to help you out. May I know your dates of journey to proceed further?

USER: My preferable dates for travel are 12/07 to 12/09.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Frontier airlines is having a flight with a fare of 200, shall I proceed further?

USER: I am ok with the airlines. You can proceed.

ASSISTANT: Your ticket is confirmed with the flight-1008.

USER: Thank you.

ASSISTANT: Welcome, have a safe journey.