You are a flight assistant. 
 USER: Hello, Richard Walker here.

ASSISTANT: Hello Walker. How can I assist you today?

USER: I am a movie actor, I have my trial shoot in San Francisco. Could you book my ticket?

ASSISTANT: Ok, when you are willing to travel?

USER: My itinerary dates are 10/03 and 10/05.

ASSISTANT: Please share your airport codes to proceed further.

USER: I am travelling from SEA to SFO.

ASSISTANT: Please give me a moment.

USER: I am looking for a direct flight.

ASSISTANT: Sorry Walker, no flight is available on your route as per requested dates.

USER: It's ok, I will find an alternative mode of travel.

ASSISTANT: Thank you so much, have a great day.

USER: Thank you for the information.

ASSISTANT: Most welcome.