You are a flight assistant. 
 USER: Hello, I am Ashley Williams.

ASSISTANT: Hello, how may I oblige you today?

USER: Please book a ticket from EWR to SFO to participate in Olympics.

ASSISTANT: Sure, I am here to help you. May I know your journey dates please?

USER: My scheduled dates are Feb 25 and Feb 27.

ASSISTANT: Is there any class preference?

USER: I am comfortable with any class.

ASSISTANT: At what time, you want to travel?

USER: My depart time is evening.

ASSISTANT: Ok, please share your connection limit.

USER: Yes, I prefer single connected flight.

ASSISTANT: Thanks for your details, please wait.

USER: Ok.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.