You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I abet you today?

USER: I need to attend an interview in HQ software at Minneapolis & St. Paul, MN - MSP. Can you help me with booking flight ticket within fare 200?

ASSISTANT: Sure, we are here to make your journey easy.

USER: Thank you.

ASSISTANT: Please provide your travelling depart date and return date?

USER: I want to depart on 04/25 and return on 04/27.

ASSISTANT: Please let me know your source code?

USER: My source is Denver, CO - DEN.

ASSISTANT: To reverse a ticket can you please share your good name?

USER: Sure, James Turner is my name.

ASSISTANT: Thank you for sharing your details, please wait.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting, there are no flights found by the given details.

USER: Ok, I will try to reach on another day. Thank you for the information.

ASSISTANT: Thank you for availing with us.