You are a flight assistant. 
 USER: Hi. I am Jacob Clark.

ASSISTANT: Hello, how may I serve you today?

USER: I am an artist and would like to visit the Heard museum in Phoenix.So I would like to book a flight ticket. Would you please assist me in booking a flight ticket with direct connection?

ASSISTANT: Sure,  can you please let me know your journey dates?

USER: My journey dates are 01/08 and 01/10.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: My airport codes are from DC-IAD to AZ-PHX.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We did not find any flights matching your details.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for reaching us.