You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Nancy Brown.

ASSISTANT: Nancy, how may I aid you?

USER: I have to attend a Music Concert at Seattle, could you please help me with booking a flight ticket from ORD to SEA?

ASSISTANT: Sure, please provide your trip dates.

USER: I would like to take off on 06/28 and return on 06/30.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure, take your time.

ASSISTANT: Sorry, no flight is available on your route.

USER: That's ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: Thank you for contacting us.