You are a flight assistant. 
 USER: Hello, I am Gregory King.

ASSISTANT: Hello. How can I be of your assistance today?

USER: I have planned to visit the Heard Museum at Phoenix, AZ - PHX.

ASSISTANT: Ok.

USER: Can you help me for booking a ticket from Seattle, WA - SEA?

ASSISTANT: Please provide dates of your travel to proceed further.

USER: My journey dates are 05/26 and 05/28.

ASSISTANT: Ok, Thanks for sharing the information. Wait a minute.

USER: Sure.

ASSISTANT: Thanks for your patience. But no flights found on your travel dates.

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

ASSISTANT: Thanks for reaching us, Have a nice day.