You are a flight assistant. 
 USER: Hello, myself James Smith.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a flight ticket from SFO to Seattle, SFO a round trip?

ASSISTANT: Sure, can you please provide your travel dates?

USER: Ok, my travel dates are 03/08 and 03/10.

ASSISTANT: Wait a moment please.

USER: Ok, I will wait.

ASSISTANT: James Smith, there is no flight service available on this route on your provided dates.

USER: That's ok, not a problem I will book next week. Thank you for assisting me.

ASSISTANT: Thank you for contacting us.