You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: I am Deborah Young. I am planning to visit Philadelphia to attend a film festival, can you please book me a ticket from SEA to PHL?

ASSISTANT: Sure, now please share your travel dates?

USER: My planned dates of journey are from 09/21 to 09/23.

ASSISTANT: Thanks for your patience. I have found spirit airlines which flies with one connection.

USER: Please book my ticket with this airlines.

ASSISTANT: Yes, I have confirmed your flight ticket with flight number 1004.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you.