You are a flight assistant. 
 USER: Hi, I am Linda Phillips.

ASSISTANT: Hello, how can I render you?

USER: I am planning to visit sky view observatory at Seattle, WA - SEA with my friends. Can you help me to book a connecting flight?

ASSISTANT: Sure, may I know your trip dates?

USER: I want to fly on 12/14 and recur on 12/16.

ASSISTANT: Can I know your starting airport code?

USER: My source is from Charlotte, NC - CLT.

ASSISTANT: There is a flight from Delta airline with price of 100.

USER: Please proceed.

ASSISTANT: Your flight booking is confirmed with flight number 1015.

USER: Thanks for your excellent customer service.

ASSISTANT: Thanks for reaching us.