You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Samantha Thompson. Can you please help me in booking my flight ticket from PHL to SEA?

ASSISTANT: Sure Samantha, can you please provide me with your dates of journey?

USER: My trip dates are 01/04 and 01/06.

ASSISTANT: Please wait for a moment to check for the availability.

USER: Ok, sure.

ASSISTANT: Sorry Samantha, there is no flight found as per your travelling details.

USER: Ok, fine thank you for checking.

ASSISTANT: You are welcome always.