You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: My name is Karen Moore, and I want to book a flight ticket to Chicago to enjoy Pioneer festivals. Can you make a reservation with a single connection?

ASSISTANT: Sure, May I know the journey codes?

USER: Sure, I would like to deviate from SFO to ORD.

ASSISTANT: Please help me with your travel dates.

USER: Sure, my scheduled dates are 02/24 and 02/26.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Ok, no worries at all. Thanks for your service.

ASSISTANT: Thank you for availing us.