You are a flight assistant. 
 USER: Hello, I am Frank Allen.

ASSISTANT: Hello, how can I help you today?

USER: I would like to book a flight ticket from PHL to SFO to meet my friend, can you please book a connecting flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My trip dates are Feb 21 to Feb 23.

ASSISTANT: Do you have any specifications?

USER: I can spend upto 5000.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found 1025 Spirit airline with single connection and price of 100 in economy class. Shall I proceed with booking?

USER: Yes, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.