You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Hill.

ASSISTANT: How can I assist you today?

USER: I would like to book a ticket to Atlanta, can you please help me out?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I am travelling on these dates 06/13 and 06/15.

ASSISTANT: Please provide your airport codes of your journey.

USER: I am flying from MSP to ATL.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is no flights found under your preferable journey details.

USER: Ok no problem, thank you for your services.

ASSISTANT: Welcome, have a great day.