You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Jessica Perez.

ASSISTANT: How can I aid you?

USER: I want to book a flight ticket to Houston, help me in booking my flight ticket from WA-SEA to TX-HOU.

ASSISTANT: Sure, kindly mention your trip dates?

USER: My trip dates will be 10/12 to 10/14.

ASSISTANT: Thanks for your details, there were no flights available with your given preferences.

USER: Ok, thank you.

ASSISTANT: Thanks for choosing us.