You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Debra Clark here.

ASSISTANT: Debra, how may I help you?

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

ASSISTANT: Sure, please provide your itinerary dates.

USER: Ok, my planned dates of journey are from 07/16 to 07/18. I need a direct flight.

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

USER: Sure, take it.

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

USER: Ok, that's fine. Anyways, thank you for your service.

ASSISTANT: Thank you for reaching us.