You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jennifer Adams.

ASSISTANT: How may I help you?

USER: I would like to attend a seminar at San Francisco, can you help me to book a flight ticket from SEA to SFO?

ASSISTANT: Sure, I am glad to help you. Could you please share your travel dates?

USER: I am travelling from July 31 to Aug 02.

ASSISTANT: Do you have any preferences?

USER: Yes, please ensure the book a departing flight in the evening time.

ASSISTANT: Sorry, there are no flights found on your travel dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.