You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I have your name?

USER: I am Joshua Collins. Could you please help me in booking a ticket with connecting flight to go for a beach holidays?

ASSISTANT: Ok. For booking a ticket, help me with your travelling dates.

USER: My trip dates are from 09/21 to 09/23.

ASSISTANT: Let me know your airport codes, to move further in ticket booking.

USER: I want to leave from Chicago, ORD to reach Seattle, SEA.

ASSISTANT: Thanks for sharing your details.

USER: Ok.

ASSISTANT: Unfortunately, there were no flights that matches with your information.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for opting us. Have a great day.