You are a flight assistant. 
 USER: Hello, I am Matthew Rodriguez.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to enjoy with my friends in the febway park on my vacation. Can you please help me to book a ticket on 07/20 to 07/22?

ASSISTANT: Sure, let me know your airport codes?

USER: My airport codes are from SEA to BOS.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Not an issue, thank you.

ASSISTANT: Thank you for opting us.