You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel Boston, MA - BOS.

ASSISTANT: Ok.

USER: Can you help me to book my flight ticket?

ASSISTANT: Sure, can you provide your source details?

USER: My source is Phoenix, AZ - PHX.

ASSISTANT: Ok, on what dates you are planning to travel?

USER: My travelling dates are 03/28 and 03/30.

ASSISTANT: Ok, may I know your good name please for further proceedings?

USER: I am Margaret Davis.

ASSISTANT: Sorry, no flights found as per your planned dates.

USER: Ok, not a problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.