Hi.
user
Hello.
assistant
I am Nicole Hall.
user
How can I assist you?
assistant
 I am a science student in New York university, I want to visit National Museum of Natural History for my thesis, can you help me in booking a ticket from PHX to OAK?
user
Sure Nicole, can I know the travel dates please?
assistant
My travelling dates are 02/04 to 02/06.
user
Ok, wait a moment please.
assistant
Sure.
user
Sorry Hall, there are no flights on your dates.
assistant
No issue, thank you for checking.
user
Thank you for approaching us.
assistant