You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I render you today?

USER: I have to meet my childhood friend in Washington, can you please aid me to reserve a flight ticket from Austin?\.

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Thank you. My planned travel dates are June 29 and July 01.

ASSISTANT: Ok, do you have any other specifications?

USER: I prefer to depart in the morning time. So, please search the flight accordingly.

ASSISTANT: Ok, may I know your name please?

USER: My name is Richard Anderson.

ASSISTANT: Sorry Richard Anderson, there are no flights available on your requested dates.

USER: It's ok, not a problem with that. Thank you for helping me.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.