You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: Myself Gary Edwards.

ASSISTANT: Gary, how may I help you?

USER: Can you please help me to book my ticket?

ASSISTANT: Sure, I can help you. Can you please provide your airport codes?

USER: My travelling codes are from ATL to PHX.

ASSISTANT: Please provide the preferable dates of your journey?

USER: My travelling dates are 01/08 and 01/10.

ASSISTANT: Sorry Gary, we could not found any flights on your requested dates.

USER: Ok, that's fine. Thank you for your help.

ASSISTANT: Your welcome and thank you for contacting us.