You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am a singer, I have to host a show in Houston, please book my ticket from SEA to IAH.

ASSISTANT: Ok, please provide your trip dates too.

USER: My trip dates are 10/04 and 10/06.

ASSISTANT: Ok, may I know your name?

USER: George Lopez here.

ASSISTANT: Thanks for your details George Lopez, there is no flight found on your route.

USER: No problem, thank you.

ASSISTANT: Welcome, have a nice day.