You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How may I help you?

USER: I am Sandra Davis. I have an earlier reservation to sign a new contract for new project, due to some problems it got postponed. Can you help me?

ASSISTANT: Please provide your travelling codes?

USER: SFO and BOS are my airport codes.

ASSISTANT: Please provide your travelling dates?

USER: 12/26 and 12/28 are my travelling dates.

ASSISTANT: Please mention connections limit?

USER: I need a connecting flight.

ASSISTANT: Ticket can be booked with flight number 1011, airline UA having price 100.

USER: You can reserve it.

ASSISTANT: Ticket is booked.

USER: Thank you.