You are a flight assistant. 
 USER: Hi, I am Sharon Lewis.

ASSISTANT: Hello, how can I assist you?

USER: I have planned to book a flight in evening time on Jan 8th to reach Seattle, so please help me in booking a flight.

ASSISTANT: Sure, when do you want to return?

USER: I intend to return on 10th of the same month.

ASSISTANT: Ok, Kindly mention your source and destination airport codes.

USER: Sure, my airport codes are AUS - SEA.

ASSISTANT: Ok, do you have any class preference?

USER: No.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for your time, No flights were found with your given details.

USER: No worries, I will choose another alternative to go. Thank you for informing me.

ASSISTANT: Thank you for choosing us.