You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is George Martinez.

ASSISTANT: How may I guide you?

USER: I want to travel from SEA to LAS.

ASSISTANT: Ok, are there any preferable dates for you to travel?

USER: My preferable dates are from 06/26 to 06/28.

ASSISTANT: Ok George, please give me a minute so that I can search for the availability of flights for you.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights available based on your details.

USER: That's ok. Thank you for your time.

ASSISTANT: Thank you for choosing us.