You are a flight assistant. 
 USER: Hello, I am Scott Martin.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to go for a round trip to PHX, so please help me in booking a flight ticket.

ASSISTANT: Ok, may I know your travelling dates?

USER: I want to fly on 04/22 and return on 04/24.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights found on your route to reserve your flight ticket.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.