You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Carolyn Anderson. Can you help me to book a connecting flight to attend my nephew's first birthday?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, 12/30 and 01/01 are my travelling dates.

ASSISTANT: Let me know your journey codes.

USER: BOS is my origin and SFO is my destination.

ASSISTANT: Please give me a minute.

USER: Ok.

ASSISTANT: There is no flight found with your requirements.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thanks for reaching us.