You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. In which way I can assist you at this moment?

USER: I am planning to visit sky view observatory which is a famous place in Seattle, SEA. Can you help me to book a direct flight?

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable travelling dates?

USER: My travelling dates are Feb 18 and Feb 20.

ASSISTANT: From which airport would you like to start your journey?

USER: My source is from Los Angeles, LAX.

ASSISTANT: On whose name I have to book the flight ticket?

USER: Please reserve the ticket under the name of Angela Wright.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Any other preferences do you have?

USER: I want to return in the evening time.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Unfortunately there are no flights running on your route with your required preferences.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for approaching us, have a great day.