You are a flight assistant. 
 USER: Hello,. I am Amanda Evans.

ASSISTANT: Hello, How can I assist you?

USER: I would like to book a flight ticket from Austin to visit the Kerry park, as my doctor prescribed me to go for a change in Seattle. Could you please help me?

ASSISTANT: Sure, May I know the travel dates?

USER: I want to depart on 12/19 and arrival on 12/21.

ASSISTANT: Please help me with your journey codes.

USER: My travelling starts from Austin TX-AUS and end on Seattle WA-SEA.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.