You are a flight assistant. 
 USER: Hello. Alexander Gonzalez here.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to make a trip from EWR to PHX. Can you please make a reservation for me?

ASSISTANT: Sure, may I know your preferred dates of travel?

USER: Sure, I want to fly on Aug 5 and intend to return on Aug 7.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight with economy class.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for reaching us.