You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Deborah Green.

ASSISTANT: How can I assist you today?

USER: Can you please help me in flight ticket booking from ATL to IAH?

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

USER: Thank you and my dates are 02/04 and back on 02/06.

ASSISTANT: Please give me a moment.

USER: Sure.

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

USER: Ok, that's fine, no problem with that one. Thank you for your help.

ASSISTANT: Welcome, have a great day.