You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jeffrey Harris here.

ASSISTANT: In which way I can aid you at this moment?

USER: I want to reserve my ticket from SEA to DEN, can you please help me in this?

ASSISTANT: Sure, I am happy to aid you in booking flight ticket. Could you please mention your preferable travel dates for booking flight ticket?

USER: Sure, my planned dates of journey are from 08/12 to 08/14.

ASSISTANT: Please hold on a moment, I will check flight availability in this route as per your requested dates.

USER: Sure, I will wait.

ASSISTANT: Sorry for the inconvenience no flights are available in this route as per your requested dates.

USER: Ok, not an issue. Anyways, thank you for your service.

ASSISTANT: Thank you for contacting us, have a nice day.