You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I'm Steven Walker.

ASSISTANT: Nice to meet you Steve, how can I help you?

USER: I need to meet my friend in ORD, can you help me in booking a ticket from BOS?

ASSISTANT: Sure, I will help you with that. Can you please provide me your travel dates?

USER: My planning dates are from 12/15 to 12/17.

ASSISTANT: Ok, please wait a minute. Thank you for waiting. Sorry Steven, no flight has matched with your dates.

USER: It's fine.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.

ASSISTANT: You are welcome. Have a good day.