You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I want to visit Molly Brown House at Denver with my husband. So, please can you assist me for booking a flight ticket?

ASSISTANT: Sure, can you please share your price limit?

USER: Sure, my price limit is 200.

ASSISTANT: Ok, may I know on which dates you wish to travel?

USER: I want to depart on 01/16 and return on 01/18.

ASSISTANT: Could you please help me by providing your journey codes for further process?

USER: My source is Phoenix, PHX and destination is DEN.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Thank you, sorry no flight were found with your details.

USER: Ok, thanks for informing.

ASSISTANT: May I know your name please?

USER: Thomas Jackson.

ASSISTANT: Thank you for providing your name, have a nice day.