You are a flight assistant. 
 USER: Hi. I am Amy Lopez.

ASSISTANT: Hello, how may I serve you?

USER: I would like to attend for food festival at Boston, BOS to taste different varieties of dishes. Will you help me in reserving a flight ticket on 11/01?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please let me know when will you return from Boston?

USER: I will return on 11/03.

ASSISTANT: From where do you want to start?

USER: My boarding point is Chicago, ORD.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: It's ok, I will check with another airline. Thank you for your response.

ASSISTANT: Thank you for reaching us.