You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Deborah Nelson. Can you please book a flight ticket from LGA to OAK?

ASSISTANT: Deborah Nelson. How can I help you?

USER: Please help me with flight ticket booking.

ASSISTANT: Sure, pleasure helping you. Can you provide me with the travel dates.

USER: Sure, I need to travel on dates of Mar 20 and Mar 22.

ASSISTANT: Can you let me know with the class preference?

USER: I am ok with any class.

ASSISTANT: Do you have any connection limitation.

USER: I am looking for single connecting flight.

ASSISTANT: Let me know you depart and return timings.

USER: I would like to depart in the morning time only.

ASSISTANT: Is there any other airline preference?

USER: No, I am ok with any airlines.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

ASSISTANT: I regret to inform that there are no flights for your requirements.

USER: It's ok fine, no problem. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.