You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Alexander Wilson.

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 the preferable dates of your journey?

USER: I am travelling on these dates 07/08 and 07/10.

ASSISTANT: Please mention your airport codes of journey.

USER: I am flying from SEA to ATL.

ASSISTANT: Please give me a moment.

USER: Sure.

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

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

ASSISTANT: Welcome, have a great day.