You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Samantha Gonzalez.

ASSISTANT: Hello Samantha.

USER: I am planning to go for my daughter-in law home, can you please help me to book my ticket from IAD to ATL?

ASSISTANT: Sure, when would you like to travel?

USER: My travelling dates are 08/29 to 08/31.

ASSISTANT: Sorry Samantha, we don't found any flights with your requested dates.

USER: It's ok. Thank you for your information.

ASSISTANT: Thank you for reaching our service, have a good day.