You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need a direct flight for my journey, can you please find out a flight for me?

ASSISTANT: Sure, can you please share your journey dates?

USER: Thank you for accepting my request, my boarding is on Jan 08 and please book my return ticket on Jan 10.

ASSISTANT: Kindly mention your airport codes?

USER: Sure, I will prefer SFO and SEA as my origin and destination airports respectively.

ASSISTANT: Are you looking for any preferred connections?

USER: No, I need a direct flight.

ASSISTANT: Do you have any other specifications to be met?

USER: No, thank you for asking.

ASSISTANT: Can I have your name to proceed further?

USER: Sure, my name is Frank Baker.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time but try to bring a best flight in my route.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Oh! Sad to hear that. Anyway, I will find another alternative for my journey. Thank you for your time.

ASSISTANT: Thank you for availing us.