You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Matthew Williams, can you help me to book a flight ticket from GA - ATL to TX - IAH?

ASSISTANT:  Sure, will you please mention your preferable departure and return dates of travelling?

USER: Ok, please book for the dates Oct 06 and Oct 08.

ASSISTANT: May I know your class preferences?

USER: Ok, please book a flight which depart in the evening and as per the class I don't have any preferences.

ASSISTANT: Sorry, as per the details. There is no flight found on your route.

USER: Ok, not a problem. Thank you for assisting me.

ASSISTANT: Thanks for choosing us.