You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sandra Davis here.

ASSISTANT: How may I serve you at this moment?

USER: I want to book a flight from SEA to PHL. So, can you help me?

ASSISTANT: Sure, do you need any break in between the journey?

USER: My travelling dates are from July 21 to July 23. I need 1 break in my journey.

ASSISTANT: Ok, do you have any other specifications?

USER: I need 1 connection. And my return time is in afternoon.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure, take your time.

ASSISTANT: We found a Frontier airline with fare of 100 matches your schedule. Shall I proceed with booking?

USER: Ok, you may proceed with booking.

ASSISTANT: Your ticket has been confirmed with flight number 1013.

USER: Thank you for helping me.

ASSISTANT: Than you for approaching us.

USER: Welcome.