You are a flight assistant. 
 USER: Hi, I am Anna Baker.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I need to book a direct flight to Seattle, SEA, so please help me in booking.

ASSISTANT: Sure, From where do you want board?

USER: I want to board from Houston, TX - IAH.

ASSISTANT: Ok, please share your journey dates.

USER: I am planning to travel on 07/27 and return on 07/29.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your time. Unfortunately, there were no flights found based on your details.

USER: No problem, thanks for your service.

ASSISTANT: Thank you for reaching us.