You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket to Phoenix AZ-PHX to meet my school head as he is in problems , help me in booking my flight ticket from Seattle WA-SEA.

ASSISTANT: Sure, please share me your travelling dates?

USER: 07/27 is my starting date, my return date will be 07/29.

ASSISTANT: May I know your name?

USER: I am Richard Wilson.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there are no flights with your specifications.

USER: Its ok, thank you for your effort in searching a flight for me.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your response.