You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I support you?

USER: I have to attend a Live Concert at Seattle, could you please help me with booking a flight ticket from PHX to SEA?

ASSISTANT: Sure, we are glad to support you. Kindly mention your stopover in between journey?

USER: I am looking for a connecting flight.

ASSISTANT: Will you please let me know your travelling dates?

USER: I would like to depart on Dec 20th and return on Dec 22nd.

ASSISTANT: Can I know your name please?

USER: I am Raymond Brown.

ASSISTANT: Is there any other requirements, please let me know?

USER: I am looking for a economy class ticket.

ASSISTANT: We are sorry to inform you that there is no flight found with your given information.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you.