You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy Perez.

ASSISTANT: How may I assist you?

USER: Actually I heard that there is a workshop going on in Houston city. Can you please help me to book a flight from my home town BOS to HOU?

ASSISTANT: Sure Nancy, may I know when are you planning your journey?

USER: Ok, my dates of journey are on 08/27 and 08/29.

ASSISTANT: There are no flights available at this moment.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for contacting us.